Papers - All

Steven D Levitt, John A List, Chad Syverson

Cited by*: 7 Downloads*: 12

Productivity improvements within establishments (e.g., factories, mines, or retail stores) are an important source of aggregate productivity growth. Past research has documented that learning by doing-productivity improvements that occur in concert with production increases-is one source of such improvements. Yet little is known about the specific mechanisms through which such learning occurs. We address this question using extremely detailed data from an assembly plant of a major auto producer. Beyond showing that there is rapid learning by doing at the plant, we are able to pinpoint the processes by which these improvements have occurred.

Jonathan E Alevy, Oscar Cristi, Oscar Melo

Cited by*: 1 Downloads*: 12

Field experiments were conducted with farmers in the Limari Valley of Chile to test extant theory on right-to-choose auctions. Water volumes that differed by reservoir source and time of availability were offered for sale by the research team. The auctions were supplemented by protocols to elicit risk and time preferences of bidders. We find that the right-to-choose auctions raise significantly more revenue than the benchmark sequential auction. Risk attitudes explain a substantial amount of the difference in bidding between auction institutions, consonant with received theory. The auction bidding revealed distinct preferences for water types, which has implications for market re-design.

Carlos A Alpizar, Steven Buck

Cited by*: 0 Downloads*: 12

In this paper, we distinguish between horizontal and vertical trust. We investigate how these measures of trust, as well as measures of trustworthiness and risk aversion are related to the probability of rural farmers of having had a loan from a bank. Using experimental and survey data from 191 farmers of the Amazon region of Ecuador, we find that: (1) controlling for risk aversion, women do not trust differently than men in each trust game, however, women compared to men do trust outside professionals more than community members, and (2) isolated rural farmers with stronger preferences for trusting outside professionals experience higher levels of bank loan uptake.

Hisaki Kono

Cited by*: 1 Downloads*: 12

Microfinance institutions employ various kinds of incentive schemes but estimating the effect of each scheme is not easy due to endogeneity bias. We conducted field experiments in Vietnam to capture the role of joint liability, monitoring, cross-reporting, social sanctions, communication and group formation in borrowers' repayment behavior. We find that joint liability contracts cause serious free-riding problems, inducing strategic default and lowering repayment rates. When group members observe each others' investment returns, participants are more likely to choose strategic default. Even after introducing a cross-reporting system and/or penalties among borrowers, the default rates and the ratios of participants who chose strategic default under joint liability are still higher than those under individual lending. We also find that joint liability lending often failed to induce mutual insurance among borrowers. Those who had been helped or who had repaid a little in the previous round were more likely to default strategically and repay a little again in the current round and those who paid large amounts were always the same individuals.

Juan-Camilo Cardenas, John K Stranlund, Cleve E Willis

Cited by*: 14 Downloads*: 12

A large, but inconclusive, literature addresses how economic heterogeneity affects the use of local resources and local environmental quality. One line of thought, which derives from Nash equilibrium provision of public goods, suggests that in contexts in which individual actions degrade local environmental quality, wealthier people in a community will tend to do more to protect environmental quality. In this paper we report on experiments performed in rural Colombia that were designed to explore the role that economic inequality plays in the 'provision' of local environmental quality. Subjects were asked to decide how much time to devote to collecting firewood from a local forest, which degrades local water quality, and how much to unrelated pursuits. Economic heterogeneity was introduced by varying the private returns to these alternative pursuits. Consistent with the Nash equilibrium prediction, we found that the players with more valuable alternative options put less pressure on local water quality. However, the subjects with less valuable alternative options showed significantly more restraint relative to their pure Nash strategies. Furthermore, they were willing to bear significantly greater opportunity costs to move their groups to outcomes that yielded higher average payoffs and better water quality than the Nash equilibrium outcome.

Maria De Paola, Francesca Gioia, Vincenzo Scoppa

Cited by*: 7 Downloads*: 12

We conducted a field experiment involving 720 Italian undergraduate students to investigate the existence of gender differences in performance in competitive settings and whether performance is affected by one's opponent gender. The experimental design was aimed at disentangling gender differences in taste for competition from other differences in psychological attitudes, such as self-confidence and risk aversion. Students were invited to undertake a midterm exam under a tournament scheme having as a prize some bonus points to add to the final grade. Students competed in pairs of equal predicted ability but different gender composition. We find that females are as likely as males to take part in the competition and to obtain a good performance. The gender of one's competitor does not play any role in shaping students' behavior. Men and women perform similarly both in the competitive and in the non-competitive environment.

Kenneth Leonard, Melkiory Masatu

Cited by*: 0 Downloads*: 12

The most important issue facing experimental economists is the generalizability of lab results. This letter examines more than 1200 doctor/patient consultations, in which scrutiny and duration of treatment were varied. We show that scrutiny has an important but short-lived effect.

Travis Lybbert

Cited by*: 4 Downloads*: 12

Potential poverty traps among the rural poor suggest a need to reduce poor farmers' vulnerability by stabilizing crop yields and limiting yield losses. Advances in biotechnology will help address this need directly with crops that tolerate climate fluctuation or resist biotic stresses. Evaluating ex ante how farmers will value these "poor" seeds is important for delivery design, but also challenging. This paper describes an experimental economic approach to understanding farmers' valuation of such seeds. Using data from a survey and experiment, I assess Indian farmers' valuation of changes in the mean, variance, and skewness of payoff distributions. These farmers value increases in expected value, but seem indifferent about higher moment changes in payoff distributions. Farmer traits such as wealth and risk exposure affect their valuation of these changes only mildly. While various limitations to the experimental approach must qualify practical implications of these findings, the experiment demonstrates the viability of conducting valuation experiments with open-ended questions in developing countries.

Douglas V DeJong, Robert Forsythe, Wilfred C Uecker

Cited by*: 13 Downloads*: 12

Using the data from sealed offer laboratory markets, we compare the price and quality choices of student subjects with those of businessmen subjects. The businessmen subjects were public accounting firm partners and corporate financial officers. This is of interest since the financial officer-auditor relationship is one particular application of the elementary principal-agent model which the laboratory environment was designed to test. Using several different performance measures we are unable to reject the null hypothesis that the average performance of the two subject pools were the same. However, the market using businessmen subjects generally exhibited greater variance than the market using students.

Stefan Luckner, Christof Weinhardt

Cited by*: 9 Downloads*: 12

The results of recent studies on prediction markets are encouraging. Prior experience demonstrates that markets with different incentive schemes predicted uncertain future events remarkably accurately. In this paper, we study the impact of different monetary incentives on prediction accuracy in a field experiment. In order to do so, we compare three groups of traders, corresponding to three treatments with different payment schemes, in a prediction market for the FIFA World Cup 2006. Somewhat surprisingly, our results show that performance-related payment schemes do not necessarily increase the prediction accuracy. Due to the risk aversion of traders the competitive environment in a rank-order tournament leads to the best results in terms of prediction accuracy.

Nick Drydakis

Cited by*: 0 Downloads*: 12

A field experiment was contacted in order to unbiased test whether female ethnic minorities; Albanians, face housing discrimination by owners when they seek to rent a unit in Greece three years after the national adoption of the European anti-discrimination legislation. Replicated the commonest process to rent a unit in Greece; telephone contact, we investigated a big sample represented by 122 areas. Rationally classified them in three status groups, according to their average rent levels, we found that discrimination increased monotonically with areas' status. The estimated probability of Albanians to receive an invitation to investigate a unit was lower by 0.231 in low status areas, followed by 0.324 in medium status areas, and by 0.419 in high status areas than that of Greeks. Adjusted for intra-class correlation the estimated differentials were found to be statistically significant. Similarly, we estimated an insignificant rent penalty against Albanians of 0.010 in low status areas, and significant penalties of 0.015 in medium status areas and of 0.023 in high status areas against Albanians. Consequently, a taste and/or statistical discrimination implied against Albanian seekers. Interestingly, the study enabled to estimate further that good rental housings are in significant degree unavailable to Albanians restricted their freedom in selecting a place to live. Specifically, Albanian seekers faced significantly less probabilities to investigate newer, busheled and units placed in floor than Greeks. Whilst, Albanians in order to have access to good units they had to pay more than Greeks. Finally, we estimated that female owners practiced significantly more availability constraints to Albanians than male owners. The current research contributes to two areas that have attracted scarce research attention in Greece: the experimental investigation of housing discrimination and discrimination by ethnicity. The results of this study have implications for understanding some of the enduring patterns of ethnic discrimination in the housing market.

Michael S Haigh, John A List

Cited by*: 6 Downloads*: 12

An important class of investment decisions is characterized by unrecoverable sunk costs, resolution of uncertainty through time, and the ability to invest in the future as an alternative to investing today. The options model provides guidance in such settings, including an investment decision rule called the "bad news principle": the downside investment state influences the investment decision whereas the upside investment state is ignored. This study takes a new approach to examining predictions of the options model by using the tools of experimental economics. Our evidence, which is drawn from student and professional trader subject pools, is broadly consonant with the options model.

Juan-Camilo Cardenas, John K Stranlund, Cleve E Willis

Cited by*: 0 Downloads*: 12

No abstract available

Antoni Bosch-Domenech, Jose Garcia-Montalvo, Rosemarie Nagel, Albert Satorra

Cited by*: 0 Downloads*: 12

This paper develops a finite mixture distribution analysis of Beauty-Contest data obtained from diverse groups of experiments. ML estimation using the EM approach provides estimates for the means and variances of the component distributions, which are common to all the groups, and estimates of the mixing proportions, which are specific to each group. This estimation is performed without imposing constraints on the parameters of the composing distributions. The statistical analysis indicates that many individuals follow a common pattern of reasoning described as iterated best reply (degenerate), and shows that the proportions of people thinking at different levels of depth vary across groups.

John A List

Cited by*: 9 Downloads*: 12

Walrasian tatonnement has been a fundamental assumption in economics ever since Walras' general equilibrium theory was introduced in 1874. Nearly a century after its introduction, Vernon Smith relaxed the Walrasian tatonnement assumption by showing that neoclassical competitive market theory explains the equilibrating forces in ""double- auction"" markets. I make a next step in this evolution by exploring the predictive power of neoclassical theory in decentralized naturally occurring markets. Using data gathered from two distinct markets--the sports card and collector pin markets--I find a tendency for exchange prices to approach the neoclassical competitive model prediction after a few market periods.

Jay R Corrigan, Matthew C Rousu

Cited by*: 0 Downloads*: 11

Firms spend billions of dollars annually on new product and label designs in order to attract and retain customers. The issue of labeling is also important to government agencies and nonprofit labeling organizations. For example, the U.S. Food and Drug Administration has an organizational body in its Office of Nutritional Products that deals with issues of food and dietary supplement labeling. The U.S. Department of Agriculture's Food Safety and Inspection Service also deals with labeling through its Labeling and Consumer Protection Staff. These government agencies spend millions of dollars trying to ensure that food labels adequately inform consumers. One issue that has not been examined is the welfare difference to consumers from alternative labeling schemes/regulations. It seems likely that different labels would differ in effectiveness at informing consumers.

Charles Bellemare

Cited by*: 5 Downloads*: 11

We present results from a field experiment testing the gift-exchange hypothesis inside a tree-planting firm paying its workforce incentive contracts. Firm managers told a crew of tree planters they would receive a pay raise for one day as a result of a surplus not attribuable to past planting productivity. We compare planter productivity - the number of trees planted per day - on the day the gift was handed out with productivity on previous and subsequent days of planting on the same block, and thus under similar planting conditions. We find direct evidence that the gift had a significant and positive effect on daily planter productivity, controlling for planter-fixed effects, weather conditions and other random daily shocks. Moreover, reciprocity is the strongest when the relationship between planters and the firm is long term.

Steven D Levitt, John A List, David H Reiley

Cited by*: 12 Downloads*: 11

The minimax argument represents game theory in its most elegant form: simple but with stark predictions. Although some of these predictions have been met with reasonable success in the field, experimental data have generally not provided results close to the theoretical predictions. In a striking study, Palacios-Huerta and Volij (2007) present evidence that potentially resolves this puzzle: both amateur and professional soccer players play nearly exact minimax strategies in laboratory experiments. In this paper, we establish important bounds on these results by examining the behavior of four distinct subject pools: college students, bridge professionals, world-class poker players, who have vast experience with high-stakes randomization in card games, and American professional soccer players. In contrast to Palacios-Huerta and Volij's results, we find little evidence that real-world experience transfers to the lab in these games--indeed, similar to previous experimental results, all four subject pools provide choices that are generally not close to minimax predictions. We use two additional pieces of evidence to explore why professionals do not perform well in the lab: (1) complementary experimental treatments that pit professionals against preprogrammed computers, and (2) post-experiment questionnaires. The most likely explanation is that these professionals are unable to transfer their skills at randomization from the familiar context of the field to the unfamiliar context of the lab.

Abigail Barr, Jose Garcia-Montalvo, Magnus Lindelow, Pieter Serneels

Cited by*: 4 Downloads*: 11

We explore the value of the strategy method to field experimentalists. Specifically, we demonstrate that, while the method may lead to reductions in subject understanding, it also generates valuable insights. We played the Third Party Punishment Game and the Generalized Trust Game with Ethiopian medical and nursing students applying the strategy method to the responding role in each case. Then, making use of two proxy measures for the students` cognitive abilities, we investigate the relationship between strategy-type choices and subject understanding. Thus, we find support for the assertion that apparently random and internally inconsistent strategies are symptomatic of problems of cognition. We also find support for the often, implicitly made assumption that, in BDM-type trust games, the ratio of what is returned to what is sent is an appropriate focus for comparative analyses of responder behaviour. Finally, we find evidence that an observed difference in third party punishing behaviour between Swiss and Ethiopian students is due, not to misunderstanding, but to variations in what is perceived as punishable. Our results lead us to conclude that the strategy method is of considerable value in Third Party Punishment Games, but need not be routinely applied in BDM-type trust games.

John A List, Daniel Rondeau

Cited by*: 31 Downloads*: 11

This study designs a natural field experiment linked to a controlled laboratory experiment to examine the effectiveness of matching gifts and challenge gifts, two popular strategies used to secure a portion of the $200 billion annually given to charities. We find evidence that challenge gifts positively influence contributions in the field, but matching gifts do not. Methodologically, we find important similarities and dissimilarities between behavior in the lab and the field. Overall, our results have clear implications for fundraisers and provide avenues for future empirical and theoretical work on charitable giving.