The theory of incentives by Jean-Jacques Laffont, David Martimort

By Jean-Jacques Laffont, David Martimort

Economics has a lot to do with incentives--not least, incentives to work flat out, to provide caliber items, to review, to speculate, and to save lots of. even if Adam Smith amply proven this greater than 2 hundred years in the past in his research of sharecropping contracts, in simple terms in fresh a long time has a conception began to emerge to put the subject on the middle of monetary considering. during this ebook, Jean-Jacques Laffont and David Martimort current the main thorough but obtainable creation to incentives conception so far. crucial to this conception is a straightforward query as pivotal to modern day administration because it is to economics learn: What makes humans act in a specific approach in an monetary or enterprise state of affairs? In looking a solution, the authors give you the methodological instruments to layout associations which could ascertain sturdy incentives for monetary brokers.

This publication specializes in the principal-agent version, the "simple" scenario the place a central, or corporation, delegates a job to a unmarried agent via a contract--the essence of administration and agreement conception. How does the landlord or supervisor of a company align the ambitions of its a variety of participants to maximise earnings? Following a quick historic evaluate displaying how the matter of incentives has come to the fore long ago centuries, the authors dedicate the majority in their paintings to exploring principal-agent types and diverse extensions thereof in gentle of 3 kinds of details difficulties: opposed choice, ethical danger, and non-verifiability. providing an remarkable examine a topic very important to commercial association, hard work economics, and behavioral economics, this publication is decided to develop into the definitive source for college kids, researchers, and others who may perhaps locate themselves puzzling over what contracts, and the incentives they include, are particularly all approximately.

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Black (1948, p. ”12 —Arrow (1951, p. 7) In a paper that provides a very lucid exposition of Arrow’s impossibility theorem, Vickrey (1960) raised the question of strategic misrepresentation of preferences in a social welfare function that associates a social ranking to individual preferences: 11 12 See Green and Laffont (1979, chap. 14) for a more detailed analysis of this procedure. Note that the last part of this quotation refers to incentives for groups. Incentives in Economic Thought • 17 There is another objection to such welfare functions, however, which is that they are vulnerable to strategy.

Then comes his conjecture, acknowledged by Gibbard (1973): It can be plausibly conjectured that the converse is also true, that is, that if a function is to be immune to strategy and to be defined over a comprehensive range of admissible rankings, it must satisfy the independence criterion, though it is not quite so easy to provide a formal proof of this. —Vickrey (1960, p. 588) Therefore, Vickrey is led, through Arrow’s theorem, to an impossibility result, namely the nonexistence of any method of aggregating individual preferences or of any voting mechanism that is nonmanipulable.

329) Equipped with this utilitarian social welfare criterion (with, in passing, the Harsanyi [1955] interpretation of expected utility as a justice criterion), Vickrey formulated the fundamental problem of optimal income taxation:22 It is generally considered that if individual incomes were made substantially independent of individual effort, production would suffer and there would be less to divide among the population. Accordingly some degree of inequality is needed in order to provide the required incentives and stimuli to efficient cooperation of individuals in the production process.

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