Knowledge that Transforms

Lack of access to finance is often cited as a key reason for why poor people remain poor. This paper uses data on the Indian rural branch expansion program to provide empirical evidence on this issue. Between 1977 and 1990, the Indian central bank mandated that a commercial bank can open a branch in a location with one or more bank branches only if it opens four locations with no bank branches. We show that, between 1977 and 1990, this rule caused banks to open relatively more rural branches in Indian states with lower initial financial development. The reverse was true outside this period. We exploit this fact to identify the impact of opening a rural bank on poverty and output. Our estimates suggest that the Indian rural branch expansion program significantly lowered rural poverty, and increased non-agricultural output.

After the publication of “School Choice: A Mechanism Design Approach” by Abdulkadiroglu and Sonmez (2003), a Boston Globe reporter contacted us about the Boston Public Schools (BPS) system for assigning students to schools. The Globe article highlighted the difficulties that Boston’s system may give parents in strategizing about applying to schools. Briefly, Boston tries to give students their firstchoice school. But a student who fails to get her first choice may find her later choices filled by students who chose them first. So there is a risk in ranking a school first if there is a chance of not being admitted; other schools that would have been possible had they been listed first may also be filled. Valerie Edwards, then Strategic Planning Manager at BPS, and her colleague Carleton Jones invited us to a meeting in October 2003. BPS agreed to a study of their assignment system and provided us with micro-level data sets on choices and characteristics of students in the grades at which school choices are made (K, 1, 6, and 9), and school characteristics. Based on the pending results of this study, the Superintendent has asked for our advice on the design of a new assignment mechanism. This paper describes some of the difficulties with the current mechanism and some elements of the design and evaluation of possible replacement mechanisms. School choice in Boston has been partly shaped by desegregation. In 1974, Judge W. Arthur Garrity ordered busing for racial balance. In 1987, the U.S. Court of Appeals freed BPS to adopt a new, choice-based assignment plan. In 1999 BPS eliminated racial preferences in assignment and adopted the current mechanism.

Risk Aversion and Incentive Effects: Comment by Glenn W. Harrison, Eric Johnson, Melayne M. McInnes and E. Elisabet Rutström. Published in volume 95, issue 3, pages 897-901 of American Economic Review, June 2005

Do Faculty Serve as Role Models? The Impact of Instructor Gender on Female Students by Eric P. Bettinger and Bridget Terry Long. Published in volume 95, issue 2, pages 152-157 of American Economic Review, May 2005

Different beliefs about the fairness of social competition and what determines income inequality influence the redistributive policy chosen in a society. But the composition of income in equilibrium depends on tax policies. We show how the interaction between social beliefs and welfare policies may lead to multiple equilibria or multiple steady states. If a society believes that individual effort determines income, and that all have a right to enjoy the fruits of their effort, it will choose low redistribution and low taxes. In equilibrium, effort will be high and the role of luck will be limited, in which case market outcomes will be relatively fair and social beliefs will be self-fulfilled. If, instead, a society believes that luck, birth, connections, and/or corruption determine wealth, it will levy high taxes, thus distorting allocations and making these beliefs self-sustained as well. These insights may help explain the cross-country variation in perceptions about income inequality and choices of redistributive policies.

We analyze the political determinants of investor and employment protection. Our model predicts that proportional electoral systems are conducive to weaker investor protection and stronger employment protection than majoritarian systems. This prediction is consistent with international panel data evidence. The proportionality of the voting system is significantly and negatively correlated with shareholder protection in a panel of 45 countries, and positively correlated with employment protection in a panel of 21 OECD countries. Other political variables also affect regulatory outcomes, especially for the labor market. The origin of the legal system has some additional explanatory power only for employment protection.

A unifying theme in the literature on organizations such as public bureaucracies and private nonprofits is the importance of mission, as opposed to profit, as an organizational goal. Such mission-oriented organizations are frequently staffed by motivated agents who subscribe to the mission. This paper studies incentives in such contexts and emphasizes the role of matching the mission preferences of principals and agents in increasing organizational efficiency. Matching economizes on the need for high-powered incentives. It can also, however, entrench bureaucratic conservatism and resistance to innovations. The framework developed in this paper is applied to school competition, incentives in the public sector and in private nonprofits, and the interdependence of incentives and productivity between the private for-profit sector and the mission-oriented sector through occupational choice.

What Explains Differences in Smoking, Drinking, and Other Health-Related Behaviors? by David M. Cutler and Edward Glaeser. Published in volume 95, issue 2, pages 238-242 of American Economic Review, May 2005

We conduct experiments to explore the possibility that subject misconceptions, as opposed to a particular theory of preferences referred to as the “endowment effect,” account for reported gaps between willingness to pay (“WTP”) and willingness to accept (“WTA”). The literature reveals two important facts. First, there is no consensus regarding the nature or robustness of WTP-WTA gaps. Second, while experimenters are careful to control for subject misconceptions, there is no consensus about the fundamental properties of misconceptions or how to avoid them. Instead, by implementing different types of experimental controls, experimenters have revealed notions of how misconceptions arise. Experimenters have applied these controls separately or in different combinations. Such controls include ensuring subject anonymity, using incentive-compatible elicitation mechanisms, and providing subjects with practice and training on the elicitation mechanism before employing it to measure valuations. The pattern of results reported in the literature suggests that the widely differing reports of WTP-WTA gaps could be due to an incomplete science regarding subject misconceptions. We implement a “revealed theory” methodology to compensate for the lack of a theory of misconceptions. Theories implicit in experimental procedures found in the literature are at the heart of our experimental design. Thus, our approach to addressing subject misconceptions reflects an attempt to control simultaneously for all dimensions of concern over possible subject misconceptions found in the literature. To this end, our procedures modify the Becker-DeGroot-Marschak mechanism used in previous studies to elicit values. In addition, our procedures supplement commonly used procedures by providing extensive training on the elicitation mechanism before subjects provide WTP and WTA responses. Experiments were conducted using both lotteries and mugs, goods frequently used in endowment effect experiments. Using the modified procedures, we observe no gap between WTA and WTP. Therefore, our results call into question the interpretation of observed gaps as evidence of loss aversion or prospect theory. Further evidence is required before convincing interpretations of observed gaps can be advanced.

The Collapse of a Medical Labor Clearinghouse (and Why Such Failures Are Rare) by C. Nicholas McKinney, Muriel Niederle and Alvin E. Roth. Published in volume 95, issue 3, pages 878-889 of American Economic Review, June 2005