Asymptotic analysis for optimal investment and consumption with transaction costs

We consider an agent who invests in a stock and a money market and consumes in order to maximize the utility of consumption over an infinite planning horizon in the presence of a proportional transaction cost . The utility function is of the form U(c) = c^1-p/(1-p) for p > 0, . We provide a heuristic and a rigorous derivation of the asymptotic expansion of the value function in powers of , and we also obtain asymptotic results on the boundary of the no-trade region.Received: July 2003, Mathematics Subject Classification (1991): 90A09, 60H30, 60G44JEL Classification: G13Work supported by the National Science Foundation under grants DMS-0103814 and DMS-0139911.     

Exploring deception and puffery in television advertising

Public policy decisions dealing with deceptive advertising have relied extensively on case-by-case adjudication with the Federal Trade Commission. Unfortunately, behavioral evidence has not been considered in the vast majority of these cases. The final determination rests with the Commission’s own expertise in judging an advertisement’s “capacity to deceive.” Consumer response data are not required, although recent developments suggest the FTC is seriously considering the inclusion of meaningful behavioral evidence in policymaking and adjudicative proceedings. This study is one of a series dealing with dimensions of perceived deception across different respondent populations (including students, lawyers, housewives, children, and minority groups). The focus here is on the semantics of deception, i.e., the way in which subjects evaluate selected television commercials which were unofficially rated for deception by FTC staff attorneys. The factor analytic paradigm provides one approach for generating summaries of viewer’s evaluative (affective) responses, and thereby providing some normative or benchmark data of potential value in the regulatory process.     

The multi-market firm, transportation costs, and the separation of the output and allocation decisions

Despite the documented importance of transport costs for firmswith sales in geographically separated markets, theoreticalanalyses typically ignore such costs. This paper analyzes theeffects of transport costs for a risk averse, competitive firmselling a single good in a domestic (certain) and a foreign(uncertain) market, and shows that these effects are asymmetric.The effects on total output and the inter-market allocationof output depend on the behavior of marginal domestic transportcosts, but are largely independent of the form of the foreigntransport cost function. Moreover, regardless of the latter,if marginal transport costs in the domestic market are constant,the firm's total output is independent of its attitude towardsrisk and the parameters of the risky market. This suggests thatthe firm's activity can be insulated from foreign uncertaintiesby government policies that focus on the shape of the domestictransportation cost function.     

The very real dangers of executive coaching

A personal coach to help your most promising executives reach their potential--sounds good, doesn't it? But, according to Steven Berglas, executive coaches can make a bad situation worse. Because of their backgrounds and biases, they ignore psychological problems they don't understand. Companies need to consider psychotherapeutic intervention when the symptoms plaguing an executive are stubborn or severe. Executives with issues that require more than coaching come in many shapes and sizes. Consider Rob Bernstein, an executive vice president of sales at an automotive parts distributor. According to the CEO, Bernstein had just the right touch with clients but caused personnel problems inside the company. The last straw came when Bernstein publicly humiliated a mail clerk who had interrupted a meeting to ask someone to sign for a package. At that point, the CEO assigned Tom Davis to coach Bernstein. Davis, a former corporate lawyer, worked with Bernstein for four years. But Davis only exacerbated the problem by teaching Bernstein techniques for "handling" employees--methods that were condescending at best. While Bernstein appeared to be improving, he was in fact getting worse. Bernstein's real problems went undetected, and when his boss left the company, he was picked as the successor. Soon enough, Bernstein was again in trouble, suspected of embezzlement. This time, the CEO didn't call Davis; instead, he turned to the author, a trained psychotherapist, for help. Berglas soon realized that Bernstein had a serious narcissistic personality disorder and executive coaching could not help him. As that tale and others in the article teach us, executives to be coached should at the very least first receive a psychological evaluation. And company leaders should beware that executive coaches given free rein can end up wreaking personnel havoc.     

Firm reputation with hidden information

Summary. An adverse selection model of firm reputation is developed in which short-lived clients purchase services from firms operated by overlapping generations of agents. A firm's only asset is its name, or reputation, and trade of names is not observed by clients. As a result, names are traded in all equilibria regardless of the economy's horizon The general equilibrium analysis links the value of a name to the market for services. This causes a non-monotonicity that precludes higher types from sorting themselves through the market for names, and leads to “sensible” dynamics: reputations, and name prices, increase after success and decrease after failure. Received: July 31, 2001; revised version: December 20, 2001 RID="*" ID="*" I thank Jon Levin, Eric Maskin and Drew Fudenberg for valuable discussions, and Heski Bar-Isaac for comments on an earlier draft. Financial support from the National Science Foundation (NSF grants SBR-9818981 and SES-0079876) is gratefully acknowledged. This paper replaces an older (and incomplete) working paper titled “Reputation with Hidden Information”.     

Financial Times Business School Rankings: A Nontraditional Assurance Case in Three Parts*

The Financial Times of London (FT) is a business newspaper, with daily editions published in the United Kingdom, continental Europe, the United States, and Asia, and an estimated daily readership of 10 million people. In 1999 the FT began to publish a ranking of what it considered to be the top business schools in the world. Since their inception, these rankings have become increasingly relied upon by potential students and business school administrators worldwide. The FT's ranking is unique compared with other rankings because of its special international focus. Given the prominence of these rankings and the FT's position as a well‐respected business newspaper, the question of providing assurance over the business school rankings that the FT provides is particularly challenging.     

A Qualitative Exploration into Voters' Ethical Perceptions of Political Advertising: Discourse, Disinformation, and Moral Boundaries

Political campaign advertising continues to be a controversial policy topic in advertising and marketing research. It is also a prime subject for investigating the ethical evaluations of consumers (or voters). The following study draws from postmodern communication theory and employs a qualitative research methodology in order to explore voters' intimate and subjective views about politics, candidates, and political advertising. The findings include emergent themes relating to significant media rituals in voters' lives, the cynical perspective of politics as a game, and the widespread disapproval and suspicion with which voters regard negative political advertising. Additionally, the a priori theme of political information as disinformation was proposed and expanded upon. Findings are discussed in light of a greater understanding of the appropriateness of the traditional versus the postmodern perspective of political communication, informants' construction of moral boundaries which help them determine right from wrong, acceptable vs. unacceptable political behaviours in this particular context.     

Acceptability and Ethics of Product Placement in Sport Video Games

Product placement in sport video games is an emerging area of marketing and advertising communication, but it also raises controversial ethical issues. In order to investigate these issues from a consumer perspective, this study examines the perceptions of the acceptability of product placement in sport video games (SVGs). Data were gathered from 253 sport video gamers using an online survey. The results indicate that while sport video gamers generally have favorable attitudes toward product placement in sport video games, ethically-charged products such as alcohol, cigarettes, and guns are perceived as less acceptable than other products. Individual differences among sport video gamers are found based on their related attitudes, hours of playing sport video games, and gender. Also, sport video gamers who have favorable attitudes toward product placement, in general, are more likely to intend to purchase a product or brand which may be placed in sport video games.