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A Theory of Conformity

Journal of Political Economy 1994 102(5), 841-877
This paper analyzes a model of social interaction in which individuals care about status as well as "intrinsic" utility (which refers to utility derived directly from consumption). Status is assumed to depend on public perceptions about an individual's predispositions rather than on the individual's actions. However, since predispositions are unobservable, actions signal predispositions and therefore affect status. When status is sufficiently important relative to intrinsic utility, many individuals conform to a single, homogeneous standard of behavior, despite heterogeneous underlying preferences. They are willing to conform because they recognize that even small departures from the social norm will seriously impair their status. The fact that society harshly censures all nonconformists is not simply assumed (indeed, status varies smoothly with perceived type); rather, it is produced endogenously. Despite this penalty, agents with sufficiently extreme preferences refuse to conform. The model provides an explanation for the fact that standards of behavior govern some activities but do not govern others. It also suggests a theory of how standards of behavior might evolve in response to changes in the distribution of intrinsic preferences. In particular, for some values of the preference parameters, norms are both persistent and widely followed; for other values, norms are transitory and confined to small groups. Thus the model produces both customs and fads. Finally, an extension of the model suggests an explanation for the development of multiple subcultures, each with its own distinct norm.

How Strong Are Bequest Motives? Evidence Based on Estimates of the Demand for Life Insurance and Annuities

Journal of Political Economy 1991 99(5), 899-927
This paper presents new empirical evidence in support of the view that a significant fraction of total saving is motivated by the desire to leave bequests. Specifically, I find that social security annuity benefits significantly raise life insurance holdings and depress private annuity holdings among elderly individuals. These patterns indicate that the typical household would choose to maintain a positive fraction of its resources in bequeathable forms, even if insurance markets were perfect. Evidence on the relationship between insurance purchases and total resources reinforces this conclusion.

Is Everything Neutral?

Journal of Political Economy 1988 96(2), 308-338
In his well-known analysis of the national debt, Robert Barro introduced the notion of a "dynastic family." This notion has since become a standard research tool, particularly in the areas of public finance and macroeconomics. In this paper, we critique the assumptions on which the dynastic model is predicated and argue that this framework is not a suitable abstraction in contexts in which the objective is to analyze the effects of public policies. We reach this conclusion by formally considering a world in which each generation consists of a large number of distinct individuals as opposed to one representative individual. We point out that family linkages form complex networks, in which each individual may belong to many dynastic groupings. The resulting proliferation of linkages between families gives rise to a host of neutrality results, including the irrelevance of all public redistributions, distortionary taxes, and prices. Since these results are not at all descriptive of the real world, we conclude that, in some fundamental sense, the world is not even approximately dynastic. These observations call into question all policy- related results based on the dynastic framework, including the Ricardian equivalence hypothesis.

A Theory of Conformity

Journal of Political Economy 1994 102(5), 841-877
This paper analyzes a model in which individuals care about both consumption (intrinsic utility) and social status. Status depends on public perceptions about an individual's predispositions rather than on the individual's actions. However, since predispositions are unobservable, actions signal predispositions and therefore affect status. When status is sufficiently important relative to intrinsic utility, many individuals conform to a rigid standard of behavior, despite heterogeneous intrinsic preferences. When status is relatively unimportant, no conformity emerges. The model produces both customs and fads, and it suggests an explanation for the development of multiple subcultures with distinct norms.

How Strong Are Bequest Motives? Evidence Based on Estimates of the Demand for Life Insurance and Annuities

Journal of Political Economy 1991 99(5), 899-927
This paper presents new empirical evidence in support of the view that a significant fraction of total saving is motivated by the desire to leave bequests. Specifically, the author finds that social security annuity benefits significantly raise life insurance holdings and depress private annuity holdings among elderly individuals. These patterns indicate that the typical household would choose to maintain a positive fraction of its resources in bequeathable forms, even if insurance markets were perfect. Evidence on the relationship between insurance purchases and total resources reinforces this conclusion.

Is Everything Neutral?

Journal of Political Economy 1988 96(2), 308-338 open access
In his well-known analysis of the national debt, Robert Barro introduced the notion of a "dynastic family." This notion has since become a standard research tool, particularly in the areas of public finance and macroeconomics. In this paper, we critique the assumptions upon which the dynastic model is predicated, and argue that this framework is not a suitable abstraction In contexts where the objective is to analyze the effects of public policies. We reach this conclusion by formally considering a world in which each generation consists of a large number of distinct individuals, as opposed to one representative individual. We point out that family linkages form complex networks, in which each individual may belong to many dynastic groupings. The resulting proliferation of linkages between families gives rise to a host of neutrality results, including the irrelevance of all public redistributions, distortionary taxes, and prices. Since these results are not at all descriptive of the real world, we conclude that, in some fundamental sense, the world is not even approximately dynastic. These observations call into question all policy related results based on the dynastic framework, including the Ricardian equivalence hypothesis.

Exclusive Dealing

Journal of Political Economy 1998 106(1), 64-103
In this paper, we provide a conceptual framework for understanding the phenomenon of exclusive dealing, and we explore the motivations for and effects of its use. For a broad class of models, we characterize the outcome of a contracting game in which manufacturers may employ exclusive dealing provisions in their contracts. We then apply this characterization to a sequence of specialized settings. We demonstrate that exclusionary contractual provisions may be irrelevant, anticompetitive, or efficiency‐enhancing, depending on the setting. More specifically, we exhibit the potential for anticompetitive effects in noncoincident markets (i. e., markets other than the ones in which exclusive dealing is practiced), and we explore the potential for the enhancement of efficiency in a setting in which common representation gives rise to incentive conflicts. In each instance, we describe the manner in which equilibrium outcomes would be altered by a ban on exclusive dealing. We demonstrate that a ban may have surprisingly subtle and unintended effects.

Bequests as Signals: An Explanation for the Equal Division Puzzle

Journal of Political Economy 2003 111(4), 733-764
In the United States, more than two‐thirds of decedents with multichild families divide their estates exactly equally among their children. In contrast, gifts given before death are usually unequal. These findings challenge the validity of existing theories regarding the determination of intergenerational transfers. In this paper, we develop a theory that accounts for this puzzle based on the notion that the division of bequests provides a signal about a parent’s altruistic preferences. The theory can also explain the norm of unigeniture, which prevails in other societies.