ON THE EVOLUTION OF ECONOMIC THOUGHT
Historians of economic thought divide schools of thought, past and
present, into ‘Classical’ and ‘Neoclassical’ economics. Sometimes I am also
wont to use too broad a brush and spin all variations of ‘neoclassical’ into
the catch-all of ‘modern’
economics’.
The eminent economist, James Ahiakpor, described by others as
the ‘”Last Classical Economist” demurs, but is happy to accept a label of being
a ‘Classical’ economist, but not necessarily the last one, because such
definitive labels cover various sub-schools, depending on different shades of
thought that underlines the distinctive qualities ascribed to them across numerous
generations of overlapping ‘Classical” and ‘Neoclassical’ thinkers.
Professor James Ahiakpor remarks that “J.M.
Keynes used that term [Classical] almost as a slur. That is why several
upholders of the classical tradition, including Dennis Robertson and Ralph
Hawtrey, shied away from it. But I embrace that label with pride”.
Of the ‘Neoclassical’ school he refers
to its own evolution and distinguishes seven sub-schools within it:
“(1) Neoclassical Keynesianism, (2) Post
Keynesians, (3) New Keynesians, (4) Monetarism, (5) New Classicals, (6) Real
Business Cycle Theorists, and (7) Austrians. Remarking that “I leave out
the Marxists.”
These avoidable errors are prevalent when practitioners disregard what
their predecessors’ actually wrote and distort, often by sheer invention (of
which Paul Samuelson on Adam Smith was a classic example, as discussed
regularly on Lost Legacy).
Together they outline an
evolutionary view of the history of economic thought, which sounds more
credible than past economists being patronised by whatever a recent generation says to
put down their predecessor’s ideas which they believe are due for a
reckoning by their ‘modern’ ideas.
Kuhn’s ideas of “paradigm” shifts might apply here and that is the
fascination of the History of Economic Thought.
I am not surprised that so much of the history of economic thought is
entangled in not distinguishing the so-called separate schools of its
practitioners when account is taken of common misrepresentations after they passed away.
Thomas Humphrey began this thread on the Blog of the Societies for the
History of Economics (SHOE@YORKU.CA) and I recommend that readers consult its regular posts from its various daily contributions
from authorities of accurate insights to the
evolution of the thinking embedded in past ideas.
Others contributors are from the overly protective schools of those of recent
thinking by true believers in what temporarily passes for the so-called truths
of those suffering from the delusion that they are absolutely right (Hubris?) and their
predecessors’ were absolutely wrong sarcastically. On occasion they “bless them”, metaphorically, and comfort them for their tragic ignorance with pathetic quips to their students and readers.
2 Comments:
I just came across this phrase in a column by David Brooks of the New York Times: "In this era, the invisible hand may not be enough."
airth10
That statement is in the same class as saying:
"in this era, Santa Claus may not be enough".
Neither Santa Claus nor the invisible hand exists.
The first is an imaginary entity, the second is a metaphor without any evidence for is existence and no such term can be found in mathematical equations purporting to show it at work.
Metaphors "describe their objects in a more striking and interesting manner" (Adam Smith, "Lectures in Rhetoric and Bellers Lettres", 1762, p 29. Moreover they describe the invisible private motives of the person a lead them to an action, where their action has unintended consequences.
Those actions are not described by the metaphor, nor are the unintentional consequences.
If the IH metaphor described an entity's it would not make sense, because an action's intended consequences are not simultaneously intended.
Gavin
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