Job Characteristics and Labor Market Discrimination in Promotions

We extend promotion signaling theory to generate new testable implications concerning racial differences in promotions. In our model, promotions signal worker ability. When tasks differ substantially across job levels, the opportunity cost of not promoting qualified non‐whites/non‐Asians is large, so employers are less likely to inefficiently withhold their promotions. Thus, given prepromotion performance, the extent to which non‐whites/non‐Asians have lower promotion probabilities decreases when tasks vary more across levels. Racial differences in wage increases at promotion diminish when tasks vary more across levels. Evidence from a single firm's personnel records supports the model's predictions concerning promotion probabilities.     

Determining the effectiveness of consumer boycotts: A stock price analysis of their impact on corporate targets

This research study employs a time-series methodology in an effort to assess the impact of 21 consumer boycott announcements upon the wealth of stockholders of target firms. A major finding of the study was that consumer boycott announcements were followed by statistically significant decreases in stock prices for the target firms. In addition, the overall market value of the target firms dropped by an average of more than $120 million over the two-month post-announcement period. A series of multiple regression analyses employing dummy variables representing identifiable boycott attributes failed to identify any significant relationships between the level of equity damage inflicted upon the boycott targets and the selected variables. Policy implications of the research findings are drawn for corporate managers as well as boycott leaders.     

A Monetarist View

Friedman examines the quantity theory of money and the recent application of monetary policy in Japan, the United Kingdom, and the United States. In all three countries, the reduction of monetary growth has reduced inflation. In the United States, in 1983, the renewed expansion of the money supply raises the distinct possibility that inflation will resume in 1984 or 1985, according to the author.     

Separating the Hawks from the Doves: Evidence from continuous time laboratory games

Human players in our laboratory experiment received flow payoffs over 120 seconds each period from a standard Hawk–Dove bimatrix game played in continuous time. Play converged closely to the symmetric mixed Nash equilibrium under a one-population matching protocol. When the same players were matched in a two-population protocol with the same bimatrix, they showed clear movement towards an asymmetric (and very inequitable) pure Nash equilibrium of the game. These findings support distinctive predictions of evolutionary game theory.     

Costs of providing infusion therapy for patients with inflammatory bowel disease in a hospital-based infusion center setting

Aims: Inflammatory bowel disease (IBD) (e.g. ulcerative colitis [UC] and Crohn’s disease [CD]) severely impacts patient quality-of-life. Moderate-to-severe disease is often treated with biologics requiring infusion therapy, adding incremental costs beyond drug costs. This study evaluates US hospital-based infusion services costs for treatment of UC or CD patients receiving infliximab or vedolizumab therapy.

Materials and methods: A model was developed, estimating annual costs of providing monitored infusions using an activity-based costing framework approach. Multiple sources (published literature, treatment product inserts) informed base-case model input estimates.

Results: The total modeled per patient infusion therapy costs in Year 1 with infliximab and vedolizumab was $38,782 and $41,320, respectively, and Year 2+, $49,897 and $36,197, respectively. Drug acquisition cost was the largest total costs driver (90–93%), followed by costs associated with hospital-based infusion provision: labor (53–56%, non-drug costs), allocated overhead (23%, non-drug costs), non-labor (23%, non-drug costs), and laboratory (7–10%, non-drug costs).

Limitations: Limitations included reliance on published estimates, base-case cost estimates infusion drug, and supplies, not accounting for volume pricing, assumption of a small hospital infusion center, and that, given the model adopts the hospital perspective, costs to the patient were not included in infusion administration cost base-case estimates.

Conclusions: This model is an early step towards a framework to fully analyze infusion therapies’ associated costs. Given the lack of published data, it would be beneficial for hospital administrators to assess total costs and trade-offs with alternative means of providing biologic therapies. This analysis highlights the value to hospital administrators of assessing cost associated with infusion patient mix to make more informed resource allocation decisions. As the landscape for reimbursement changes, tools for evaluating the costs of infusion therapy may help hospital administrators make informed choices and weigh trade-offs associated with providing infusion services for IBD patients.     

Intolerable nuisances: some laboratory evidence on survivor curve shapes

The fraction of a user population willing to tolerate nuisances of size x is summarized in the survivor curve S(x); its shape is crucial in economic decisions such as pricing and advertising. We report a laboratory experiment that, for the first time, estimates the shape of survivor curves in several different settings. Laboratory subjects engage in a series of six desirable activities, e.g., playing a video game, viewing a chosen video clip, or earning money by answering questions. For each activity and each subject we introduce a chosen level \(x \in [x_{\min }, x_{\max }]\) of a particular nuisance, and the subject chooses whether to tolerate the nuisance or to switch to a bland activity for the remaining time. New non-parametric techniques provide bounds on the empirical survivor curves for each activity. Parametric fits of the classic Weibull distribution provide estimates of the survivor curves’ shapes. The fitted shape parameter depends on the activity and nuisance, but overall the estimated survivor curves tend to be log-convex. An implication, given the model of Aperjis and Huberman (SSRN, doi:  10.2139/ssrn.1672820, 2011), is that introducing nuisances all at once will generally be more profitable than introducing them gradually.     

沃顿商学院

在危急时缓解压力 面对经济下滑，公司的直觉反应是压缩过剩的生产能力，同时要求员工加倍努力工作。然而，这种做法会引起员工的怨恨，事实上是弊大于利。聪明的做法是坦诚地向员工说明公司所面对的局面，邀请员工一起帮助公司渡过危机，鼓励并支持员工解决生活中出现的其他困难。把这些事情做好，     

Perceived common myths and unethical practices among Direct Marketing professionals

Two arcas of continuing interest to direct marketing professionals are the perceived myths and unethical practices in the field. Documentation of specific cases and more abstract discussion of these two points of interest frequently appear in the direct marketing literature (e.g. Gitlitz and Barton, 1983; Lewis, 1982; Pierce, 1985). Indeed, the Direct Marketing Association (DMA) has promulgated specific guidelines (DMA, 1985) for ethical business practices within the industry. Up to this point, however, there has been no attempt at a systematic evaluation of the perceptions of professionals in the field. Such an evaluation of these two areas of practice would appear to beg the following questions: (1) What are the major common myths which abound in direct marketing as perceived by professionals who come into direct contact with the operations of direct marketing organizations? (2) Which of these so-called myths are most requently mentioned? (3) What are the most commonly perceived unethical practices? (4) Which of these unethical practices are most frequently mentioned by direct marketing professionals? (5) To what extent do these perceived unethical practices coincide with the industry's own guidelines?     

Law and Economics: What and Why

Can economics contribute anything to our understanding of law? David Friedman of the University of Chicago Law School, argues that economics can increase our understanding of the law and improve the drafting of legislation.