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Paul Pierson: Politics in Time:
history, institutions, and social analysis
(Princeton University Press: 2004)
“This book explores a
range of temporal processes that are common in political life. It seeks
to distinguish various processes that unfold over substantial stretches
of time, to identify the circumstances under which such different
processes are likely to occur, and to highlight the significance of
these...for our understanding of important political outcomes. In doing
so, I seek to demonstrate the very high price that social science often
pays when it ignores the profound temporal dimensions of real social
processes. The ambition, in short, is to flesh out the often-invoked
but rarely examined declaration that history matters ....
Why do social scientists need to focus on how processes unfold over
significant stretches of time? First, because many social processes are
path dependent, in which case the key causes are temporally removed
from their continuing effects, and a central focus of analysis is on
‘lost’ alternatives, resulting from the accumulation of
self-reinforcing processes. Second, because sequencing - the temporal
order of events or processes - can be a crucial determinant of
important social outcomes. Third, because many important social causes
and outcomes are slow-moving - they take place over quite extended
periods of time, and are only likely to be adequately explained (or in
some cases even observed in the first place) if analysts are
specifically attending to that possibility. Finally, because the task
of explaining institutional outcomes is better framed as an issue of
institutional development, rather than one of institutional
choice...including the role of time horizons, unintended consequences,
learning and competitive selection processes, and path dependence.”
(Pierson, pp.2-16)
Time and the modern social sciences have had a very fraught
relationship. Whether in the economics-derived rational choice/game
theoretical approaches - which almost invariably concentrate upon the
short-run - or the empirically-derived varieties of institutionalism,
which tend to overemphasize the role of social actors driving change,
there has been a general problem w/the role of institutions over
time...arguably, the central question of the social sciences. Parts of
the solution have been reviewed earlier on this site: the social
selectionism of W.G. Runciman, the different anthropological
perspectives of Mary Douglas and Edward T. Hall, the complementary
works of Jane Jacobs and Mancur Olson on social rigidities, and the
longer-term demographic patterning analyzed by Peter Turchin and David
Hackett Fischer...And yet, there is still a definite hole there -
identified by Paul Pierson - as to the key “mechanisms” which commonly
recur in different times and social systems, those which basically stop
history being simply “one damn thing after another”...
Moreover, the rise of non-linear approaches has allowed us to grasp -
to some extent - how these function and, in Kathleen Theelan’s words,
“capture the impact of time, in as timeless a way as possible.” It is
this work which Pierson surveys and synthesizes to masterful effect in Politics in Time.
And, its centre lies in the interconnected concepts of increasing
returns, path dependence, and positive feedback/self-reinforcing
processes...for it is these which the conventional social sciences tend
to either underplay, or ignore.
“During the past twenty
years...economists have exhibited a growing interest in the idea of
‘increasing returns’ - where each increment added to a particular line
of activity yields larger rather than smaller benefits. Over a wide
range of subjects, including the spatial location of production, the
development of international trade, the causes of economic growth, and
the emergence of new technologies, path-dependence arguments have
become prevalent.... With increasing returns, actors have strong
incentives to focus on a single alternative, and to continue moving
down a specific path once initial steps are taken in that direction....
[Brian] Arthur argues that four features of a technology and its social
context generate increasing returns: 1. Large set-up or fixed costs .... 2. Learning effects ....
With repetition, individuals learn how to use products more
effectively, and their experiences are likely to spur further
innovations.... 3. Coordination effects .
These occur when the benefits an individual receives from a particular
activity increase as others adopt the same option...[and are]
especially significant when a technology has to be compatible with a
linked infrastructure.... 4. Adaptive expectations .
If options that fail to win acceptance will have drawbacks later on,
individuals may feel the need to ‘pick the right horse’.... This
discussion of technology is primarily important because it clarifies a
set of relationships characteristic of many social interactions...[and
Douglass] North argues that all the features that Arthur
identified...can be applied to institutions.”
(Pierson, pp.22-6)
“[Moreover,] there are
strong grounds for believing that self-reinforcing processes will be
prevalent in political life - arguably more pervasive and intense than
they are in the economic sphere. Once established, patterns of
political mobilization, the institutional ‘rules of the game’, and even
citizens’ basic ways of thinking about the political world will often
generate self-reinforcing dynamics.... Path dependence helps us to
understand the powerful inertia or ‘stickiness’ that characterizes many
aspects of political development - for instance, the enduring
consequences that often stem from the emergence of particular
institutional arrangements...[and] how inequalities of power, perhaps
modest initially, can be reinforced over time, and often come to
be deeply embedded in organizations and dominant modes of political
action and thought, as well as institutional arrangements.”
(Pierson, pp.10-11)
“Economic theory is
built around the useful and plausible assumptions that actors know what
they want, strive to get as much as they can, and are pretty good at
doing so...[although] the market is often highly complex, and
confusing. Yet, the presence of a unifying metric (prices), the absence
of a need to coordinate many of one’s economic decisions with those of
other actors, the prevalence of repeated interactions, and the presence
of relatively short causal chains between choices and results greatly
facilitate the efforts of economic actors to establish priorities,
construct sensible causal maps, and correct mistakes over time....
[However,] politics is a far, far murkier environment. It lacks
anything like the measuring rod of price, involves the pursuit of a
wide variety of largely incommensurable goals, and consists of
processes that make it very hard to observe or measure important
aspects of political performance, and...still more difficult to
determine...what adjustments would lead to better results. [Moreover,]
the reliance on elaborate procedures to handle collective-choice
situations in politics is inescapable, but it undermines transparency -
that is, it greatly increases transaction costs.... Where transactions
costs are low, market mechanisms are likely to be effective. They often
break down, however, when transaction costs are very high...[which is]
characteristic for public goods. Thus, it is complex and ambiguous
issues and problems that gravitate toward the public sphere...
[Moreover,] there are...compelling reasons to believe that political
processes will often be marked by the dynamics of increasing returns.
Tendencies toward positive feedback characterize four processes central
to political environments: collective action, institutional
development, the exercise of authority, and social interpretation. In
each case, there are reasons to anticipate that steps in a particular
direction can trigger a self-reinforcing dynamic...and the capacities
for reversing course are often weak. Both the prevalence and the
intensity of these processes in politics suggest that path dependence
arguments offer an important tool for understanding political dynamics.”
(Pierson, pp.37-44)
“Legally binding rules
are not just a foundation for political activity (like property rights
in the economy). They are instead the very essence of politics....
Efforts to coordinate actors in pursuit of public goods often require
the construction of formal institutions. Once established, these
institutional constraints apply to all - those who do not approve as
well as those who do - and they are backed up, ultimately, by force.
The ‘exit’ option, while central to the workings of the market, is
often unavailable (or prohibitively costly) to actors who feel poorly
served by existing political arrangements.... [Furthermore, Douglass]
North’s analysis highlights how institutions induce self-reinforcing
processes that make reversals increasingly unattractive over time. In
contexts of complex social interdependence, new institutions and
policies often generate high fixed costs, learning effects,
coordination effects, and adaptive expectations. Institutions and
policies may encourage individuals and organizations to invest in
specialized skills, deepen relationships with other individuals and
organizations, and develop particular political and social identities.
These activities all increase the attractiveness of existing
institutional arrangements, relative to hypothetical alternatives. In
institutionally dense environments, initial actions push individual
behavior onto paths that are hard to reverse.”
(Pierson, pp.30-5)
And, where path dependence is prevalent, the order of things is usually
important - directly contrary to the (timeless) founding assumptions of
neoclassical economics. Moreover, Pierson stresses that sequencing
arguments come in different forms, and that it is those which show the
effects of path dependence which are the most significant - and also
the most common:
“One class of arguments about timing and sequence focuses on conjunctures - interaction effects between distinct causal sequences that become
joined at particular points in time. For instance, it arguably mattered
a great deal...whether left wing or right wing parties happened to be
in power when a cataclysmic event, the Great Depression, hit a
particular country.... At the same time, however, there appear to be
real limits to our capacity to use conjunctural claims to search
for...mechanisms that could be applied in multiple settings. This is
not the case for...many - probably most - arguments about sequencing,
[which] turn out on closer investigation to be grounded in claims about
positive feedback.... [Moreover,] linking arguments about path
dependence to a focus on sequencing produces powerful theoretical
synergies.... It can draw attention to contests over ‘political space’
in which potential competitors seek first-mover advantages, while
clarifying the likely long-term impact of initial defeats on the
opportunities and constraints facing initial ‘losers’ or groups that
arrive at a later point in time.... Furthermore, a focus on historical
sequences suggests how arguments about path dependence can address
claims about political change, as well as political inertia...[and] can
both draw on and enhance arguments that rational choice theorists have
developed about the temporal ordering of choices in highly
institutionalized settings.”
(Pierson, pp.12-13)
“To employ the language
of evolutionary theory, arriving first will not matter unless one can
prosper in the ecological niches available. Yet, there remains a strong
case for thinking that the sequence in which groups enter and fill
political space will often matter a great deal.... Start-up costs are
often very high in collective action processes, and thus constitute a
major barrier to entry. By contrast, it is often much easier to sustain
or expand an organization once this minimum threshold has been crossed.
If affiliating with organizations that fail to attract widespread
support has significant drawbacks - almost always the case in politics
- then individuals will make adjustments as collective action processes
unfold. There will often be a tendency to affiliate with, or at least
accommodate, existing groups once they reach a certain size, even among
actors who would prefer some hypothetical alternative. Perhaps most
important, actors who achieve a critical mass of political resources
may be able to manipulate the rules of the game (formal institutions)
and reallocate resources (public policies) in ways that increase their
organizational advantages over potential competitors.”
(Pierson, p.73)
“Linked to an analysis of self-reinforcing processes, an investigation of...when a particular issue or conflict emerges in a society becomes critical
for two reasons. First, the resources available to actors at that
moment in time help to determine the repertoire of possible responses.
Second, once a response is adopted, it may generate self-reinforcing
dynamics that put politics on a distinctive long-term path.... Note
that both the notion of
historically shifting social conditions, and the role of
self-reinforcing processes are crucial to this line of argument.
Without processes of positive feedback, changes in relevant social
conditions over time would simply be incorporated into present
political processes. Absent a self-reinforcing dynamic, [for example,]
the fact that early state building occurred in a context of limited
literacy would leave no lasting impact.”
(Pierson, p.75)
“Contemporary social
scientists are strongly predisposed to focus on aspects of causal
processes and outcomes that unfold very rapidly. Yet many things in the
social world take a long time to happen...[while] the fact that
something happens slowly does not make it unimportant.... Some causal
processes and outcomes occur slowly because they are incremental - it
simply takes a long time for them to add up to anything. In others, the
critical factor is the presence of threshold effects, [as] some social
processes may have little significance until they attain a critical
mass, which may then trigger major change. Other social processes
involve considerable time lags between the appearance of a key causal
factor and the occurrence of the outcome of interest...because the
outcome depends on a ‘causal chain’...[or] transformations that are
probabilistic during any particular period.... Analysts who fail to be
attentive to these slow-moving dimensions of social life are prone to a
number of serious mistakes. They may ignore potentially powerful
hypotheses. They are particularly likely to miss the role of many
‘sociological’ variables, like demography, literacy, or technology.
Their explanations may focus on triggering or precipitating factors,
rather than more fundamental structural causes. Indeed, by truncating
an analysis of processes unfolding over an extended period of time,
they may end up inverting causal relationships.... Perhaps most
fundamental of all, they may fail to even identify some important
questions...because the relevant outcomes happen to slowly, and are
therefore simply off their radar screens.”
(Pierson, pp.13-14)
As Pierson shows, there are - as we might expect - certain regularities
to be observed here. Threshold dynamics, for example, are particularly
likely where actors face binary choices and where expectations re
others’ choices have influence over their own, whilst slow-moving,
cumulative structures are commonly the outcome of processes of cohort
replacement or competitive selection. The most important section of the
book, however, is that devoted to the question of institutional
development, as it reframes arguably the central problem of the social
sciences: that of institutions by drawing upon all the resources he has
discussed...
“As social scientists
have sought to explain institutional outcomes, there has been a strong
tendency to employ...‘actor-based functionalism’ [which] typically
rests on the claim that institutions take the form they do because
powerful actors, engaged in rational strategic behavior, are seeking to
produce the outcomes observed.... [However,] the adoption of an
extended time frame reveals numerous problems for such accounts.
Functional interpretations are often suspect because of the sizeable
time lag between actors’ actions, and the long-term consequences of
those actions. Political actors, facing the pressures of the immediate,
or skeptical about their capacity to engineer long-term effects, may
pay limited attention to the long term. Thus the long-term effects of
institutional choices, which are frequently the most profound and
interesting ones, should often be seen as the by-products of social processes, rather than embodying the goals of social actors.”
(Pierson, pp.14-15)
“Specific institutional
arrangements invariably have multiple effects...[while] institutional
innovations constitute ‘common carriers’ for coalitions of reformers, that support a particular innovation for
disparate...perhaps conflicting or even contradictory [reasons].... The
‘designers’ may be a diverse set of negotiators, with multiple goals,
making institutional choice a complex and pluralistic outcome,
designers may not be thinking primarily in instrumental terms [but,
rather, of ‘appropriate’ form;] they may be thinking instrumentally,
but be preoccupied by short-term considerations; they may simply make
mistakes; they may find that the institutions work less well as the
surrounding environment changes; and they may be succeeded by actors
with [different] preferences. In all these cases, we are likely to see
an uneasy tension between institutional arrangements and the
preferences of powerful actors. Convincing treatments of institutional
development must take all these possibilities into account....
[Moreover,] complexity of context and limits of human cognition mean
that mistaken understandings in politics often do not get corrected. An
additional problem is that institutional revision generally requires
‘collective learning’ - large numbers of people within and across
organizations must come to see things in a similar way. As Hannan and
Freeman point out...‘when members of an organization have diverse
interests, organizational outcomes depend heavily on internal
politics...[and] outcomes cannot easily be matched rationally to
changing circumstances.’ ...[In addition,] competitive processes are
not irrelevant to the development of political institutions, but... in
most cases...political institutions are not really subject to direct
competition at all. Instead, single institutional arrangements, or sets
of rules, typically have a monopoly over a particular part of the
political terrain.”
(Pierson, pp.109-29)
“There are strong
theoretical grounds for holding that institutional resilience in many
settings is likely to be considerable.... Four major obstacles to
revision need to be distinguished: coordination problems, veto points,
asset specificity, and positive feedback. Together, these factors often
make revision quite difficult [and,] equally important, they influence
the conditions under which revisions will be possible, and favor
certain kinds of revisions over others. They therefore constitute
fundamental building blocks for an understanding of institutional
change.”
(Pierson, p.142)
Co-ordination problems are basic - actors always have different needs,
and no institution is likely to reconcile all of these, and thus extant
solutions, however imperfect, tend to be resilient. However, as Pierson
notes, the other three obstacles are likely to be present even when
“learning effects, competitive pressures, challenges from below, or
isomorphic pressures” are significant. Let’s look at them in turn:
“Institutional
arrangements in politics are typically hard to change. As Goodin puts
it, stability and predictability are achieved through ‘a system of
“nested rules”, with rules at each successive level in the hierarchy
being increasingly costly to change.’ ....For the study of
institutional development, a crucial issue is not just the number of
veto points, but their structure .
Specifically, some institutional veto points are what Gary Miller has
called ‘self-referencing’ - the actors protected by them control the
process of institutional revision...[and] attempts at major
institutional reform appear to have been much more common...in contexts
where veto points were minimal (e.g., the French Fourth Republic) or
not self-referencing (e.g., the repeated use of referenda in Ireland
and Italy).”
(Pierson, pp.144-6)
“Resilience stems not
only from the fact that coordination problems and the presence of veto
points may make particular institutional revisions difficult . Even more important, individual and organizational adaptations to existing arrangements may also make reversal unattractive .
Over time, actors may adapt to the new rules of the game, by
making...commitments based on the expectation that these rules will
continue...[and] these commitments, I wish to argue, are both extensive
and diverse. Equally important, they are likely to accumulate with the
passage of time...[and,] to the extent that their assets are specific,
actors are likely to become more committed to the continuation of the
activity where those assets are applied.... [In addition,] it is
important to consider...the development of strong interlinkages among
institutional arrangements over time. Once established, formal
political institutions become an essential part of the infrastructure
on which other, less foundational arrangements are constructed....
[And] where complementarities exist, the value of each component is
enhanced by the presence of the others.... In short, while arguments
about vetoes and (to a lesser extent) coordination imply stable costs
of institutional revision over time, arguments about investments and
positive feedback see these costs as dynamic: institutions are
typically not only self-enforcing, but self-reinforcing...[and]
institutions themselves shape the parameters of institutional
development.”
(Pierson, pp.147-152)
And such development is the rule rather than the exception, so it is
important not to mistake canalization - to borrow the biological term -
for stagnation. Moreover, as we might expect, the four basic options
facing potential reformers map quite well onto Mary Douglas’ grid/group
theory...although I’ll leave it to you to make the (obvious) matches...
“In determining their
best strategy, reformers must think about the costs and benefits
of...reform from within, replacement of the existing institution, the
layering of a new arrangement on top of the old one, or acquiescence to
the institutional status quo.”
(Pierson, pp.155-6)
“At every step along
the way, there [are choices] - political and economic - that
provide...real alternatives. Path dependence is a way to narrow
conceptually the choice set, and link decision making through time. It
is not a story of inevitability in which the past neatly predicts the
future.”
(Douglass North, in Pierson, p.52)
Now...at this point, I think it’s worth briefly trying to suggest some
of the connections Pierson makes between such arguments and concrete
examples - something which I have (as usual) scanted in my attempts to
outline the theoretical grasp of the work. Here he notes certain robust
patterns over time in modern democracies:
“[Josep]
Colomer...observes tremendous stability in the broad regime
characteristics of established democracies - majoritarian, PR, and
presidential systems are rarely replaced by one of the other models. In
all these settings, however, he argues that there are significant
political pressures for increasing inclusiveness and pluralism over
time. In presidential systems, this means shifting to majority runoff
or qualified plurality rules...as well as efforts to heighten
presidential accountability, and create a more balanced division of
powers. In parliamentary systems, there have been clear trends toward
greater proportionality in electoral systems.... In short, countries
with different broad institutional regimes are unlikely to switch
paths. Thus, in contemplating reform, they are effectively choosing
from different menus.... [Another] promising line of argument...would
examine interaction effects among multiple institutions.... At least
two broad possible types of interactions seem particularly
relevant...[as] if institutional development may be influenced by tight
coupling or complementarities, there are also likely to be significant
consequences of specific forms of ‘loose coupling’ as well...where
there are substantial ambiguities about the allocation of authority
amongst them...[which will] present opportunities for venue-shopping
among institutional reformers.... Two types of institutional
configurations offer clear instances of loose institutional coupling:
federalism, and executive-judicial relations.....[but] there is a
striking difference between the two.... In the case of
judicial-executive relations, unanticipated consequences seem to run
almost entirely in one direction: an expanded role for courts. In the
case of federalism there is no such unidirectionality. Sometimes
federal systems become more decentralized over time (e.g., Canada), and
sometimes they become more centralized (e.g., the United States).”
(Pierson, pp.161-4)
As Pierson goes on to say, the explanations for the latter are clearly
complex, although even the expansion of effective judicial review is
hardly simple. Given the judiciary as a site of power in the first
place - hardly a universal in itself - he links its inexorable
expansion to the rapid rise of “law-centered actors” within such
regimes and the ability of courts to create binding decisions...both of
which create strong path-dependent outcomes that also drive other
actors/institutions to adjust to increasingly “judicialized” decision
environments.
One final point, well worth highlighting in Pierson’s approach, are his
masterful analyses of the drawbacks of those narrow theoretical models
all-too-prevalent in the social sciences. Whether by quotation of the
incisive summations of others, or via careful (and often lengthy)
dissections of his own, Pierson - as a genuine pluralist - never fails
to balance the strengths and weaknesses involved...which,
unfortunately, is a rare gift in the trench warfare which characterizes
theorizing in the social sciences.
In this, I feel, he can probably offer lessons to almost all of us...
“Individual human
beings are not perfect statisticians.... They make systematic errors in
recording the events of history, and in making inferences from them.
They overestimate the probability of events that actually occur, and of
events that are available to attention because of their recency or
saliency. They are insensitive to sample size. They tend to
overattribute events to the intentional actions of individuals. They
use simple linear and functional rules, associate causality with
spatial and temporal contiguity, and assume that big events must have
big causes.”
(Barbara Levitt & James G. March, in Pierson, p.116)
“It is critical to
highlight the considerable limitations of a game-theoretic framework
for investigating temporal sequences. Four problems in particular
deserve emphasis: 1. Game theory itself can say nothing about payoffs
and preferences.... 2. Game theory needs to focus on relatively
cohesive, well-integrated ‘composite actors’. Because game theory
centers on strategic interaction ,
it has great trouble incorporating what Scharpf calls ‘quasi groups’
[such as voters] that cannot be treated as acting strategically, but
whose ‘utility functions are interdependent in such a way that certain
acts by some will increase or decrease the likelihood that others will
act in the same way.” ...3. Games need to be kept very simple: few
actors, few options...[and] 4. Sequences cannot be
interrupted...[which] misses...precisely that sequence is given by the way in which important social interactions unfold in time, rather than being something that someone selects ....
As Scharpf himself summarizes...game theory offers the greatest
analytical leverage ‘in highly structured and frequently recurring
interactions among a limited number of actors with a high capacity for
strategic action, in situations where a great deal is at stake, and in
interest constellations with a high level of conflict in which binding
agreements are not generally possible.’”
(Pierson, pp.60-2)
“The downstream social
and political consequences of formal institutions...contains a double
irony for functionalist accounts. First, it suggests the idea that
social environments ‘select’ for certain outcomes rather than others
may often be plausible, but that societal functionalism has the causal
arrow backwards. Rather than competitive environments selecting
institutions that fit the needs of social actors, institutions, once in
place, may ‘select’ actors. This would occur through two processes,
familiar to those interested in evolutionary arguments. First, actors
adapt to institutional environments...[and,] in the long run, actors’
very identities may be powerfully shaped by institutional arrangements.
Second, individual and collective actors who do not adapt will often be
less likely to survive.... The second, and broader, irony is that a
snapshot view of such a process will mistakenly be viewed as a
confirmation of actor-centered functionalism...[in its] relatively nice
‘fit’ between the preferences of powerful actors, and the functioning
of institutions... This might suggest that we are in the realm of
rational institutional design, but in fact, such an assertion would get
the causality exactly backwards. Rather than these powerful actors
generating the institution, the institutional arrangements may have
played a powerful role in generating the properties of the actors.”
(Pierson, pp.152-3)
And here, particularly strongly, we can see how the broad implications
of Pierson’s concentration upon “mechanism” delivers consilience w/not
only W.G. Runciman’s social selection model, but also the sophisticated
anthropological take on functionalism well represented by both Ernest
Gellner, and Mary Douglas’ How Institutions Think (1986). In fact, this work could easily serve as the perfect bridge
between the latter’s social cognitive emphasis, and Runciman’s balance
between the micro-level of roles/practises, and his strong interest in
macro- level historical sociology...also strongly complemented by
Pierson’s temporal turn.
In all these ways, Paul Pierson’s Politics in Time is a key contribution to our understanding of social and political
processes, straddling as it does the social sciences, non-linear
approaches, and history with, thankfully, nary a hint of fashionable
excess in its arguments. Similarly, Pierson - although not particularly
an engaging writer - keeps social science-speak to a minimum, and shows
an admirable even-handedness when addressing rival theories. The result
is an unrivalled attempt to search for the recurrent temporal
“mechanisms” which the social sciences have tended to neglect. In doing
so, Pierson makes a strong case for path dependence as the most
important of these, and outlines the preconditions which most commonly
set up such outcomes.
Time has always been the most difficult of dimensions to get a grasp
upon, so it is not surprising that we require such a variety of
insights to help understand its many roles in our social worlds.
Pierson’s part, here, is more on the micro- level than most we have
examined on this site...but his emphasis upon so-called “mechanisms”
with widespread applicability is a crucial part of the mix. Moreover,
Pierson himself is admirably aware of the importance of rich,
pluralistic approaches to the difficulties we face in understanding
humanity, and so I feel it entirely appropriate to leave the last word
- as, of course, is usual in this forum - to him...
“A clearly developed
theory is likely to have numerous additional implications, beyond the
suggested correlation between dependent and independent variable.
[Thus,] richer theories increase the prospects for surmounting, or at
least diminishing, the ‘many variables, few cases’ problem....
[Moreover,] the arguments about temporal processes explored in this
book have not advanced any particular theory of any specific political
or social phenomena. Instead, I have drawn on many claims by social
scientists, working in various theoretical traditions, to illustrate
promising approaches.... This agnostic stance on grand theoretical
divides may elicit more frustration than it should.... As Jepperson
demonstrates, there are many plausible relationships among theoretical
imageries. They may possess poorly articulated boundary
conditions...[or] they may be asking the same thing thing in different
ways. They may address different phenomena, or ask different questions.
They may focus on different aspects of important phenomena.... To
emphasize that different imageries entail different strengths and
weaknesses, that they can generate distinctive insights, as well as
possess distinctive limitations, is not a plea that we ‘split the
difference’ among alternative approaches. It is, however, a plea for
pluralism, for an acknowledgement that all angles of vision create
distortions. In studying the social world, we need to adopt multiple
angles, or be willing to rely on the help of others, to see more
clearly.”
(Pierson, pp.174-8)
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