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Paul Ormerod: The Death of Economics
(Faber & Faber: 1994)
“Economics has assumed
a dominant position in the political life of the West, and orthodox
economic theory has exercised great influence on the conduct of public
policy.... [However,] even to the intelligent member of the public,
economics is often intimidating. Its practitioners pronounce with great
confidence in the media, and have erected around the discipline a
barrier of jargon and mathematics, which makes the subject difficult to
penetrate for the non-initiated. Yet orthodox economics is, in many
ways, an empty box, [for] its understanding of the world is similar to
that of the physical sciences in the Middle Ages. A few insights have
been obtained which will stand the test of time, but they are very few
indeed, and the whole basis of conventional economics is deeply
flawed...[whilst] the most devastating criticisms...come from within
the profession.... Good economists know, from work carried out within
their discipline, that the foundations of their subject are virtually
non-existent...[and] conventional economics offers prescriptions for
the problems of inflation and unemployment which are at best
misleading, and at worst dangerously wrong.”
(Ormerod, pp.ix-x)
From a subject by repute “dismal”, economics has been transformed in
recent years into yet another aspirant to the bestseller lists.
Meanwhile, buried amidst all the puffery, a handful of well-informed
books have sought to unmask the modelling behind the professional
consensus - so that the rest of us can properly evaluate its claims to
scientific status. And of these, Paul Ormerod’s stands out - partly due
to the enviable suppleness and clarity of his writing, but also due to
the open way it allows for the variety of approaches needed to redress
such problems, and its own focus on the key relationship of
macro-economics. All up, even the mathematically-challenged could not
wish for a better first guide to this most significant terrain...and to
the professional deformations which so mark its mainstream:
“Increasingly, [economics] is taught not as a way of learning to think about how the world might operate, but as a set of discovered truths as to how the world does operate...[and] substantial and impressive textbooks exist, both in
micro- and macro-economics, consisting in the main of the mathematical
technique of differential calculus applied to linear systems. It cannot
be stated too often that very little of the content of such textbooks
is known to be true, in the sense that many of the statements in
textbooks on, say, engineering, are known to be true: formulae for
building bridges exist, and when these formulae are applied in
practice, bridges in general remain upright. The same does not apply in
economics, and yet the confidence of the true believers in economics
has grow’d and grow’d like Topsy. As they themselves would doubtless
prefer to say, to give the description an authentic mathematical air,
it has grown exponentially. Sociologists and psychologists have
documented many case studies concerning the reactions of groups when
views which they hold about the world are shown to be false. In such
situations, far from recognising the problem, a common reaction of
individuals is to intensify the fervour of their belief...[and] their
efforts to convert others.... It was not always so. The great classical
economists, writing in the late eighteenth and early nineteenth
centuries, struggled to understand the dramatic impact on the economy
and on society of the Industrial Revolution. But, as we shall see, they
did so with an analysis very firmly rooted in reality, addressing
questions of great practical import.... In sharp contrast, modern
economics views the economy as something which can be examined in
isolation. [And] there are few greater insults in an orthodox
economist’s vocabulary than to describe someone as a sociologist. The
institutional setting, the historical experience, and the overall
framework of behaviour are ruthlessly excluded from contemporary
economic theory.”
(Ormerod, pp.4-14)
“The appropriation of
the word ‘rational’ to describe the basic postulates of orthodox
economic theory was a propaganda coup of the highest order. The world’s
most expensive public relations firms could not have done better. It
carries the implications that any criticisms of it, or any alternatives
put forward, are by definition irrational, and hence not worthy of
serious contemplation.”
(Ormerod, pp.111-12)
“The definition of
growth is intended to capture real movements in the amounts of goods
and services which are produced, or real movements in material living
standards...[but,] unlike many measurements in the physical sciences,
there is no unique way of measuring either the size of an economy at a
particular point in time, or its growth in time. [Moreover,] economists
often seek to mystify rather than enlighten the public, and nowhere is
this accomplished better than with economic data...[for] an economy
cannot be put in a pair of scales, or have a tape measure wound about
it to measure its size. The size has to be estimated. And, in the
process of estimation, decisions have to be taken not only about what
evidence to use, but also about what should and should not be included
in the definition of size in the first place.... The choice of factors
used to define the size of an economy reflects the general
preoccupation of economics with monetary transactions... [while] the
particular factors which are emphasised are those which were thought to
be especially important in the economies of the 1930s and 1940s, when
the modern conventions of national accounts were established. But there
is no reason, in principle, why other factors, such as environmental
ones, should not now be thought to be especially important, and hence
included in the national accounts, despite the fact that many of them,
such as pollution, exist but are not bought and sold. Similarly, work
done within the household is not given any value...[which] is patently
absurd.”
(Ormerod, pp.27-8)
Paul Ormerod is, in many ways, ideally placed to provide us with this
critique. Combining a business career w/academic research - the
parallel with the similarly nonconformist W.G. Runciman springs to mind
- has allowed him to shrug off the discipline’s conformist pressures,
whilst his early (and extensive) hands-on experience with economic
modelling has forced him to confront the relentless empirical
falsification so painstakingly avoided by the mainstream. In
consequence, his critique is an exhaustive one, starting w/the economic
statistics we are deluged with every day, then directly attacking the
weird assumptions which undergird micro-economic theory - the source of
mainstream economists’ unrealistic certainty, yet little discussed
outside the discipline - finally broadening into the varieties of
macro-economics which drive government policy. All of this, moreover,
is complemented by a genuinely insightful historical/sociological
analysis of the profession...resulting in a work which, despite its
brevity, is astonishingly broad (yet detailed) - not to mention
essential reading for an informed citizenry...
“The ability of
orthodox economics to understand the workings of the economy at the
overall level - the macro-level, in the technical phrase - is
manifestly weak (some would say it is entirely non-existent). This is
not to say that the subject is a completely empty box. At the detailed
level - the micro-level - economics might be able to offer certain
insights. In terms of understanding the impact of various taxes and
subsidies, designed to deter or encourage the consumption of particular
goods or services, a combination of theory and applied work can
sometimes be useful. It is when economics strays from the particular
into the general that its weaknesses are exposed more ruthlessly....
Economists see the world as a machine. A very complicated one, perhaps,
but nevertheless a machine, whose workings can be understood by putting
together carefully and meticulously its component parts. The behaviour
of the system as a whole can be deduced from a simple aggregation of
those components.... Environmentalists, by contrast, see the world as a
living organism. Prodding the system in a certain way, in a certain
place, may sometimes cause the beast to hop in one direction, sometimes
in another, and sometimes it will not move at all...[for] behaviour is
altogether too complex to be captured by a mechanistic approach. But it
is not just environmentalists who have adopted this complex model as a
practical method of analysis. Increasingly, hard-headed mathematicians
working in biology, climatology, chemistry, and even physics are coming
to see it as a more powerful way of understanding the world.”
(Ormerod, pp.33-7)
However, we’re getting ahead of ourselves, here...as Ormerod reserves
any detailed development of such an alternative until the second half
of his book. Still, it is important to note that we do have alternatives - albeit they’ve been shorn of the ludicrous
certainties so ostentatiously paraded by the current mainstream.
Meanwhile, it remains a wonderfully cautionary tale to explore exactly
how the discipline managed to get itself into such a mess:
“During the second half
of the nineteenth century, economics was greatly influenced by the
achievements of the physical sciences. Envious of their success and
prestige, and aware of the power of mathematics and its influence on
their progress, economists turned their analysis in this direction....
[And, their] analogy of the world as a smoothly running machine has an
important implication, in addition to...its ability to be explained,
[for] it refers to a world that is in harmony and equilibrium. Once
started, the machine glides along, each component part contributing to
its serene progress. There is no place, in this kind of universe, for
shocks and catastrophes, or even, at a less dramatic level, for any
tendency of the machine to break down.... [Thus,] from an economics
that took into account specific institutional, social, political, and
historical factors, which for scholars such as [Adam] Smith played such
an important role in determining the development of any particular
economy, a theory was articulated which was believed to hold in all
economies, at all times. Growth was simply taken for granted, and the
problems of economic fluctuations and unemployment, which featured
strongly in the classical writings, simply disappeared.... Smith had
argued that free markets, in which everyone, whether a buyer or seller,
of labour or of produce, followed his or her self-interest, would lead
to outcomes which were to the benefit of all. It was this part of his
contribution to economics that was translated into mathematics, in the
[neoclassical] ‘marginal revolution’. The mathematics refined and
sharpened the assumptions which were required for this result to hold,
and, given these assumptions, appeared to prove Smith’s conclusion in a
more rigorous way than was possible with purely verbal argument. But,
in doing so, much of the richness and complexity of the original
analysis was lost. [In particular,] Smith’s insistence on the
importance of the institutional framework and the overall set of moral
values in which free markets operate was neglected, for such concepts
do not convert readily into the language of mathematics.”
(Ormerod, pp.39-46)
“The temptation to use
mathematics is irresistible for economists. It appears to convey the
appropriate air of scientific authority and precision to economists’
musings. More subtly, its use hides the implications of many of the
assumptions which are made routinely in professional work. To take just
one example, the phrase ‘assume a continuum of traders’ will be
encountered in many theoretical papers on the idealised market economy.
Not only is the phrase used widely, but it is important in the
theoretical models.... The precise reasons for this need not concern us
just yet, except to say that it is a convenient mathematical
assumption...enabling [economists] to develop results by using certain
powerful mathematical theorems, which would otherwise not be valid.
Once this assumption is made, further assumptions are then spelt out in
more detail, and, several pages of mathematics later, the conclusion is
proved. But, what does this phrase ‘continuum’ actually mean? It sounds
quite innocuous, yet spelt out in words it might lead people to query
the realism of any academic paper based upon this assumption, or even
to begin to doubt whether the article was worth writing in the first
place. For the phrase means that the number of people, whether as
individuals or as firms, carrying out trade in this theoretical economy
is not just large, but is quite literally infinite.... [And] it is
essential to the solutions of the systems of equations set up in the
theoretical model.”
(Ormerod, pp.43-4)
“The initial success
and attraction of marginal economics were essentially due to three
factors. First, by appearing to demonstrate the superiority of the
pure, free-market economy, it served valuable ideological functions....
Marginal economics appeared to ‘prove’ that business should be left as
much as possible to its own devices, without help or hindrance from the
state, and that the level of taxation should be as close to zero as
possible, sentiments which exactly suited the Victorian philosophy of
self-help and self-reliance. The second reason was, as we have seen,
that the concepts of harmony and equilibrium on which marginal
economics is based were very much in keeping with the scientific spirit
of the times. The third reason...was that it represented a formidable
intellectual achievement. [And,] as an example of abstract human
thought, even at this distance in time, it is truly impressive. It
appeared, by the use of mathematics and remorseless logic, to be
rescuing economics from what was seen as the often complicated and
occasionally contradictory verbiage of the classical economists.
[Moreover,] the theoretical constructs introduced to economics over a
century ago continue to pervade discussions of policy.... The
deregulation of financial markets in the 1980s in the Anglo-Saxon
economies; the deregulation of and increased flexibility in labour
markets...the privatisation of state-owned industries; reductions in
welfare programs - all these themes flow from the logic of the theory
of competitive equilibrium...which is fundamental to the world view of
orthodox economists, regardless of any differences which they might
have about how macro-economic policy should be conducted.... [However,]
the most powerful reason for the continuing appeal of the theory is
that, despite their problems, market economies are clearly the most
successful form of economic organization yet invented...[and] the model
of competitive general equilibrium is regarded as the theoretical,
idealised form of the workings of such economies. It is this
link...which sustains the intellectual dominance of the model.”
(Ormerod, pp.46-8)
“By definition, any
model necessarily abstracts from, and simplifies, reality. But the
model of competitive equilibrium is a travesty of reality. The world
does not consist, for example, of an enormous number of small firms,
none of which has any degree of control over the market in which it is
operating.... The theory introduced by the marginal revolution was
based upon a series of postulates about human behaviour and the
workings of the economy. It was very much an experiment in pure
thought, with little empirical rationalisation of the assumptions.
Designed as a logical description of how rational individuals and
companies ought to behave, the emphasis lies equally on the words
‘rational’ and ‘individual’...[and] it was assumed...that every
individual would carry out rational calculations, and consume an amount
of any particular product such that the utility derived from the
consumption of the final unit of it - the marginal unit - was equal to
the cost of obtaining that unit. At first sight, this does seem to be a
plausible description...[but] consumption may not always be governed by
this principle...[as,] for some people, at least, consumption is often
subject not to diminishing but to increasing returns to scale. The more
one has, the more one wants, and the greater the satisfaction obtained
from getting it.... [Moreover,] ironically at precisely the time when
theories of...diminishing marginal returns were capturing the academic
discipline of economics, the United States was moving towards world
economic dominance by exploiting the unprecedented and massive increasing returns to scale of production and distribution which its rapidly
expanding economy permitted. In other word, by taking advantage of the
benefits of being big.... [Conversely,] in a world of diminishing
returns, there are strong restrictions on the ability to reinforce
competitive advantage...[as,] by definition, discounts are not
available for bulk purchases of supplies, [and] efficient national and
international channels of both distribution and marketing are assumed
not to exist.”
(Ormerod, pp.48-6)
Now, the reader previously unfamiliar w/micro-economics might, at this
point, assume Ormerod’s critique to be both established & complete,
given the level of unrealism already on display... Sadly, however, he
has mainly to this point been setting the stage...to accustom us to
strange claims before reaching for the veritable heights of economic
fantasy. And, by tempering his analysis w/historical insight, he also
shows us how the discipline as a whole behaved rather like the
proverbial frog, who was gradually boiled to death before he realized
just what the problem was. Unfortunately, however, this particular frog
has managed to drag the rest of us down w/him, and it is important for
us to understand exactly how this was achieved...
“The New Right in the
West have had so many easy targets in the public sector that their
eulogy of the free market has attracted widespread political support.
But their policy package contains two distinct offers. First, the need
to eliminate waste and inefficiency in the public sector. Examples of
this are both widespread and transparent.... The second part of the New
Right’s policy package has been the belief that free-market solutions
are always the best, [and] it is this latter view which is profoundly
mistaken. Markets and profits are crucial, but the pure free-market model itself is deeply flawed.... Indeed, there appear to
be so many violations of the conditions under which competitive
equilibrium exists that it is hard to see why the concept survives,
except for the vested interest of the economics profession, and the
link between the prevailing ideology and the conclusions which the
theory of general equilibrium provides.... The theoretical model of
competitive equilibrium is a formidable intellectual construct. A
similar situation arose, for example, in the Middle Ages, when the
belief that the sun revolved around the Earth led to astronomical
models of great complexity, as scholars struggled to account for ever
more discrepancies between the observed paths of the heavenly bodies,
and those required by theory. Eventually, the entire model was
laid to rest.”
(Ormerod, pp.65-6)
“The intellectual
attraction and fascination of the model arise from two striking
characteristics of the system as a whole, which follow logically from
the assumptions on which it is based, but which are not at all obvious
from a purely verbal description.... Indeed, they are not obvious even
from a mathematical description...and it is only when the behaviour of
the system as a whole is described, by adding up the outcomes of all
the individual decisions made, that the results can be demonstrated.
The logical proof of these...requires pages of maths. But they can be
described in words quite briefly. First, a free-market, competitive
equilibrium is efficient, in the important sense that demand equals
supply in every market, so that all the resources of an economy are
utilized, and none lie idle. Second, in such an equilibrium, no
individual or company can be made better off by altering the allocation
of resources in any way whatsoever, without making at least one person
or company worse off.... It was the demonstration of these two results
which was the really exciting intellectual feature of the marginal
revolution in economics, and that even today accounts for the
fascination of the economics profession with the construct of
competitive equilibrium.... [In this] ideal world, since all markets
clear by definition, and there is no unemployment, the government does
not need to intervene in the economy to balance supply and demand.
Further, by Pareto’s finding, any attempts to alter the allocation of
resources which emerges can only be done by making at least one person
or company worse off. In short, either economic policy has no effects,
or it hurts some group of citizens. Therefore, there is no role for it.
Governments in practice might make a mess of things quite frequently,
but in the equilibrium model they should not even try to intervene....
[And,] as far as is possible, in this model the functions of the state
should disappear. To best serve the interests of the people, the state
should wither away.”
(Ormerod, pp.71-2)
“This may seem a
bizarre statement to make, but...the model of competitive equilibrium
which has been discussed so far is set in a timeless environment.
People and companies all operate in a world in which there is no
future, and hence no uncertainty.... It is worth noting at this stage
that the consequences of introducing uncertainty to the model are
devastating...[as] in an uncertain world, a competitive equilibrium is
in general not a Pareto
optimum. In short...a very powerful and attractive property of the
standard model of competitive equilibrium is simply not true. Yet it is
this standard, static model of equilibrium and its results which is
taught as the core model of economics, to students all around the
world...[who] accept its conclusions as the received wisdom....
[Conversely,] perhaps the most devastating criticisms...have come from
mathematicians and economists working within the profession
itself...[as] economists feel able to dismiss sociological criticisms
of their model of rational behaviour, because sociologists have little
or no mathematics. [Furthermore, they] are able to dismiss the
conspicuous failures of certain policies, designed to move the economy
closer to the competitive ideal, by pointing to flaws in the design of
any particular policy. Economists are even able to dismiss the vast
weight of empirical evidence against their model, drawn from economic
history, by the simple device of closing their eyes and chanting the
‘as if’ mantra...it is ‘as if’ competition, in the sense of the
competitive model, with its infinite number of firms, prevails....
[But] technical criticisms strike at the very heart of the theoretical
model. For they take the model on its own terms, and ruthlessly expose
its inadequacy.”
(Ormerod, pp.76-8)
At this point, extracting quotations becomes rather more difficult, due
to the increasingly technical nature of the discussion - thankfully
leavened though it is w/attention to the needs of a lay readership. Yet
it is definitely worth pursuing, as it provides clear evidence as to
the depth of the profession’s commitment to its model...a commitment
far beyond reason:
“Kenneth Arrow of
Stanford University, subsequent winner of the Nobel Prize for
economics, and arguably the most fertile and productive economic
theorist since the war, began work on the theory of competitive
equilibrium in the early 1950s, [and] it is really through his work
that economists became aware of the stringency of the conditions that
are required to guarantee the existence of competitive equilibrium....
By accepting, for the purposes of analysis, all the assumptions of the
competitive model, and refining them and making them more precise, it
demonstrates the improbability of their existence in practice.
Economists are aware of this work, and some of the best minds in the
profession have in recent years risen to the challenge, by constructing
models which might be described as approximately competitive...often
motivated by the desire to save the equilibrium model from the
challenge of empirical criticism.... [But] the conclusions of this
theoretical work are unsurprising, [as] almost forty years ago...Lipsey
and Lancaster proved that...the economy as a whole can theoretically be
worse off if just one violation [to perfect equilibrium] exists, than
it is when two such violations exist. This is a result of great
practical significance. For in reality, not only in America but in
every Western country, there are many breaches of the conditions
required the model...[and, therefore,] every policy must be examined
carefully, and judged empirically. It cannot be argued that increasing
the degree of competition in an economy, when other obstacles to
competition remain, will automatically improve the performance of that
economy.”
(Ormerod, pp.80-4)
And, it is at this point where the supposedly sensible notion of
free-market “conservatism” finally disappears, in a brutal welter of
contradiction. Because “rule of law” - however minimal - is precisely such an obstacle to competition...and designedly so. For, without totally unrestricted trade in all goods and services for which there is demand - try contract killing and
slavery, for example - not to mention the theoretical necessity for
well-established futures markets for all such tradables, the model (by
definition) simply cannot deliver on its utopian promises...
And, if you actually think that any society featuring such markets
could, in actuality, be utopian, then I have serious doubts as to your
sanity.
Given the frankly appalling bloodbath that Left utopianism helped make
of the 20th century, you might’ve thought we would have learned at
least some visceral distrust
of such ideas by now. But, sad to say, I suspect humans will always go
for the pie in the sky...especially when it’s tarted up to appeal to
their prejudices. Which, yet again, is why I insist on putting history
before theory - as our best (albeit flawed) defense against such
stupidities. And the “one true dream” of the Right is just as fallible
as that of the Left...albeit its excesses (and hence, its downfall)
come in a very different package. Still, at the very deepest level,
their fundamental failing is the same: a philosophical monism which
fails human diversity/history - and, hence, cannot envisage fundamental
change or a genuine difference which matters...
“Uncertainty is an
integral part of life.... Yet this obvious and fundamental property of
human existence was not analyzed in any rigorous way in the competitive
equilibrium model until the early 1950s, when Kenneth
Arrow...demonstrated that in order for a competitive equilibrium to
exist, each person must prepare a complete list of all future states of
the environment which might obtain. And, everyone must hold absolutely
identical and correct beliefs regarding the prices which would exist in
each potential state of the world, at every point in the future. This
is a world which, transparently, bears no resemblance to reality....
Roy Radner, a distinguished American mathematical economist, was able
to relax Arrow’s assumptions...even if different people had different
beliefs...but there was a cost. For Radner also showed that, for his
proof to be valid, everyone in the economy needs to have an infinite
amount of computational capacity - not just access to a Cray
supercomputer, but literally an infinite amount of capacity....
Radner’s conclusion is stark. The model of competitive general
equilibrium, in his words, ‘is strained to the limit by choice of
information. It breaks down completely in the face of limits on the
ability of agents to compute optimal strategies.’ In other words, once
a realistic concept of uncertainty is introduced, the model ceases to
be of value.”
(Ormerod, pp.88-90)
“But, imagine now that
a unique competitive equilibrium does exist.... We are already in a
remarkable world, but what is in some ways even more remarkable is
that...no production is carried out, nor goods and services purchased,
at prices which do not ensure that all markets clear.... [Because,]
once such trading has taken place, there can be no guarantee that, even
if an equilibrium exists, the economy will ever converge to it. In
fact, it is likely to move around in cycles around the equilibrium,
from one set of prices to another, at none of which are demand and
supply equal in every market.”
(Ormerod, pp.87-8)
“Two problems in
particular are raised for economic theory by the concept of multiple
equilibria. First, it appears to provide a rationale for government
intervention in the economy after all. Even if the assumptions which
are required for competitive equilibrium to exist all hold, a
free-market economy is unable to co-ordinate the decision as to which
of the many potential equilibrium situations will actually be called
into existence. Second, and even more important, the existence of
multiple equilibria reduces considerably the policy implications which
can be drawn from the competitive model. If there is a unique solution
to the equations which describe a competitive economy, large changes
can be analyzed within this framework, since by definition the economy
will always end up at the unique equilibrium position. But, with many
solutions...large changes around any particular solution might lead to
important and unforeseen changes in the overall nature of the new
solution at which the system ends up, and which the free-market system
itself is quite unable to determine.”
(Ormerod, pp.86-7)
Which is where, and not before time, we get off...
For the second half of The Death of Economics is devoted to a reconstruction of what has been the central question of
macro-economics - the relationship between inflation and
unemployment...the key burdens of capital & labour, respectively.
By taking the data - rather than the model - as his starting point, and
combining a pattern-matching approach w/a close attention to realistic
modelling assumptions, Ormerod clearly shows us that a non-linear model
has a much greater realism than conventional approaches. And, it also
offers us a considerably different understanding of our problems, not
to mention different policy implications...
Firstly, however, we have yet more received “wisdom” to discredit...in
particular, the notion that there is a fixed relationship between
inflation & unemployment, usually labelled the “Phillips Curve”,
and the “Rational Expectations” version of same, which rules out any
manipulation of this (purported) relationship to drive down
unemployment:
“The phrase
‘Non-Accelerating Inflation Rate of Unemployment - or NAIRU for short -
is often used in economics to describe [a theoretically] unique level
of unemployment. But, showing the usual, terrifying, propaganda skill
of the economics profession, the impersonal acronym of NAIRU is often
translated into the phrase ‘the natural rate of unemployment’. What
could be more natural? Anyone arguing against the concept is, by clear
implication, defying the forces of nature itself.... [And,] whatever
the actual rate of unemployment happens to have been in the recent
past, the policy conclusion of free-market economists is always the
same: permanent reductions in unemployment can only be achieved by
‘supply-side’ measures, of flexibility and deregulation.... [However,]
an examination of the data on inflation and unemployment...tells us
quite clearly, without even carrying out any statistical analysis, that
a single Phillips curve has not existed in America over the post-war
period, and hence that there is not a clear relationship between
inflation and unemployment.... It is as if, at any point in time, an
economy can either move along an existing curve, linking the levels of inflation and unemployment, or
the curve itself can move...[and the latter shifts] are far too abrupt
to be explained by slow-moving supply-side factors.... [Therefore,] the
prime aim of anti-inflation policy should be to shift the economy from
one inflation/unemployment curve to another - to shift the curve,
rather than try to move along it.... One possibility is to try to shock
the system by draconian measures...[but,] an alternative is to try to
create a set of values in which a system of social consensus and
cohesion prevails. This is a task which ranges far beyond the narrow
confines of conventional economic policy, [which suggests that]
economic policy is far too important to be left to economists.”
(Ormerod, pp. 123-37)
“Three
properties have been identified as essential to any model seeking to
explain unemployment. Briefly, in the absence of shocks to the system,
the model should be capable of settling into long periods of regular
fluctuations. Second, the size of these regular fluctuations, and the
average level around which they fluctuate should be sensitive to the
initial values values of the system. And third, when the system
receives a major shock, there should be no tendency for it to settle
back into the regular behaviour which it exhibited previously. When it
does eventually do so, after a period of irregular behaviour, a
different pattern of regularity will be exhibited. These key
characteristics are all observed in the long runs of data on British
and American unemployment, and even in the shorter series of data on
various European countries.... Two further qualities are required of
any model of the macro-economy, be it linear, or non-linear.
First...there is no fixed relationship between the rate of economic
growth, and employment and/or unemployment. In principle, any rate of
growth is compatible with any rate of unemployment, and there is no
presumption that higher rates of economic growth necessarily mean lower
unemployment. Second - and this point is so obvious that it may be
overlooked - developed economies grow over time...so any macro-model
must be able to generate growth in output over time.”
(Ormerod, p.180)
By attempting rough matches between the real-world data sets &
outcomes from a variety of possible models - rather than trying to
“fix” one patently unrealistic one - along with careful attention to
realistic assumptions, a genuine alternative to the varieties of
macro-economic orthodoxy is brought forward for our scrutiny.
Independently developed by chemist Lotka and mathematical ecologist
Volterra - hence often referred to as LV systems - this family of
equations is traditionally used to analyse/model interdependent
variables (most famously predator/prey numbers) and Ormerod,
fascinatingly, finds them relatively easy to adapt to modelling the
inter-relationship between profits & unemployment. What’s more, he
also shows how the result can help us understand the post-war economic
“Long Boom” - demonstrating that, although non-predictive, such
modelling can make a very real contribution to knowledge...
“There are good reasons
for thinking that unemployment and profit should be linked in this way.
Suppose the economy is in an upswing. Growth is rapid...[and] in such
trading conditions, it is relatively easy to put up prices, and
increase profit margins. So the share of profits in national income
rises. But a growing economy stimulates demand for employment...[so]
wage demands intensify. The share of profits is squeezed, and in
reaction to this companies begin to cut costs.... As a result, the
economy moves into a cyclic downturn...wage demands are moderated
[and,] eventually, this enables the share of profits first of all to
stabilize, and then to rise.... Conventional economics pays little
attention to this interplay between profits and unemployment as the key
determinant of business cycles...[and] Keynes himself...placed more
emphasis on investment [overshooting] as the prime source of
fluctuations.... A more complete account...would combine Keynes’s
theory of mistaken expectations with...the LV approach, [which] should
be thought of as the basic, underlying determinant of cycles, with
Keynes’s expectations being responsible for the magnitude of the cycle
between the peak of the boom, and the trough of the recession.”
(Ormerod, pp.187-90)
“The
model of the LV system is in many ways extremely simple...yet it is
able to account for the key features of the behaviour of developed
economies at the macro-level.... The mathematical form is chosen
deliberately, in order for the theoretical model to be able to generate
the key features of behaviour observed in the empirical data. And,
importantly, the mathematical framework has a sensible economic
interpretation, [as] each of the equations in the model, and the ways
in which they interact, is justified at each stage by reference to
economic evidence. Instead of trying to derive a theory of
macro-economic behaviour from beliefs about the behaviour of
individuals and companies, we have treated the macro-economy as a
system with its own behavioural properties, and have sought to
construct a model to account for observed movements in the key
variables.... The approach is very much in the spirit of the early
classical economists, addressing issues of importance in contemporary
political economy, but with constant reference to the evidence of the
empirical data. In terms of its economic content, our model is in line
with the thinking of the classicals, restoring profits and
profitability to a central place in the understanding of developed
macro-economies, both in terms of growth itself, and in terms of cycles
around the growth path. [And,] in catching up with the rest of the
scientific world by using a non-linear methodology, the analysis
discards the mechanical concept of equilibrium, which pervades
economics and which is responsible for so many of its shortcomings. The
basic LV model...is a simplification of reality. And it has both
mathematical and economic limitations. But it is capable of giving
insights into the key determinants of growth and fluctuations in
developed economies, and shows quite clearly that the direction of
current efforts to reduce unemployment is quite misplaced.”
(Ormerod, pp.197-8)
“While demand
management did have a role to play during [the post-war] period of
rapid growth and high employment, our LV model shows that other factors
were even more important. Four points can be singled out. First, there
was a high propensity for firms to invest out of profits. Second, the
level of profits was felt by companies to justify the high level of
investment. Third, behaviour in the labour market was underpinned by
the prevailing social values. And fourth, there was the effect of pure
good fortune.... When the Western economies, particularly those in
Europe, emerged from the aftermath of war and a period of strictly
rationed consumption, there was an enormous, pent-up demand for
consumer products, [and] companies could carry out spending plans on
investment, secure in the knowledge that ready markets existed for
their products. Short-term demand management, tinkering with the
temporary fluctuations in demand over the economic cycle was, in
quantitative terms, much less important than this massive structural
backlog.... [In addition,] the stable international framework which
existed was also important in underpinning the essential
optimism...[as] a virtual circle was created, in which consumers, too,
became confident about the future...which, in turn, justified further
investment by industry.... [And,] if long-term expectations are
optimistic, the [economic] cycle is likely to be weak, in contrast to
more uncertain conditions...in which people will react sharply to any
change in their perceptions of longer-term prospects.... Behaviour in
the labour markets was [also] important...in two ways. First, the
workforce was content with the prosperity which was brought through
economic growth, and did not engage in potentially debilitating
struggles over the distribution of income.... The second point
concerning labour market behaviour was that there genuinely was work
for all, [and] groups in the workforce did not attempt to appropriate
appropriate more and more of the proceeds of economic growth for
themselves...thereby marginalizing others into unemployment.”
(Ormerod, pp.199-202)
Having sampled extremely widely - close to one hundred books, and
counting - the very varied efforts of economists aimed at the
educated public, I have still yet to encounter any that genuinely
challenge Paul Ormerod’s The Death of Economics as the best place to begin an economic re-education. For whilst
bottom-up approaches such as transactions-cost and behavioral economics
have so far been the most influential challenges to narrow orthodoxy -
in accord as they are w/the traditional direction of neo-classical
economics - due to complexity issues, these remain a long way indeed
from the central bank governance which steers our macro-economies...
In contrast, Paul Ormerod - in both this book and its sequels Butterfly Economics (1999) & Why Most Things Fail (2005) - has preferred to use a carefully selected variety of
non-linear approaches in an updated version of the technique of the
great classical economists, which has delivered highly useful
(although, unfortunately, neglected) answers to our most pressing
economic policy issues, whilst helping reconstruct macro-economics from
the top down... This is not, of course, to suggest that the work is
complete. For a start, until economists begin to take Jane Jacobs
seriously - see Cities and the Wealth of Nations (1984) - they will continue to mistake the nation-state for the basic
unit of macro-economics...with the consequences she so well describes.
Moreover, as Ormerod is well aware, his type of work is complementary
to the bottom-up approaches so well-synthesized by John Kay in The Truth About Markets (2004)...and these three books, together, offer the reader an unrivalled introduction to the real bases of political economy.
Returning to Ormerod, alone, the concise combination of the
best-mounted critique of neo-classical economics, with our best first
draft of a properly realistic macro-economic model is, quite simply,
unbeatable as a starting point. Moreover, well over a decade since its
first publication, The Death of Economics retains all of its relevance and importance - no small thing, from
within a discipline whose supposed foundations have been crumbling the
entire time. Meanwhile, for your consideration, here’s one last point
to think about, from a genuinely civic, if sadly marginalized,
economic realist...
“A number of economies
have preserved low levels of unemployment, not just in the 1950s and
1960s.... And each, in its particular way, has exhibited a high degree
of shared social values, of what may be termed social cohesion, a
characteristic of almost all societies in which unemployment has
remained low for long periods of time.... [They have also] maintained a
sector of the economy which effectively functions as an employer of
last resort, which absorbs the shocks which occur from time to time,
and more generally makes employment available to the less skilled, the
less qualified. There is, of course, a cost associated with this...but
it is a cost which societies with a high degree of social cohesion have
been willing to pay.... [Moreover,] the idea of a strong, broadly
shared set of community values is compatible with a range of
ideological positions. It can exist equally well under governments of
the centre-right and of the centre-left, [and] it is by no means an
automatic recipe for high taxation and state interference....
Innovation, entrepreneurship, and profits are still essential. Economic
competition exists on the global scale, and economies must be equipped
for it. But economic success can be achieved, and achieved more
successfully, within a broader and more beneficial framework than that
driven by the pure, individual, rationality of the economics
textbooks.... [And] Adam Smith was a philosopher, as well as an
economist, famous in his time as much for his Theory of Moral Sentiments as for The Wealth of Nations . And, as he understood so well, society is more than the sum of its individual parts.”
(Ormerod, pp.203-12)
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