Self-selection and the power of incentive schemes: an experimental study

We examine how self-selection of workers depends on the power of incentive schemes and how it affects team performance if the power of the incentive schemes is increased. In a laboratory experiment, we let subjects choose between (low-powered) team incentives and (high-powered) individual incentives. We observe that subjects exhibiting high trust or reciprocity in the trust game are more likely to choose team incentives. When exposed to individual incentives, subjects who chose team incentives perform worse if both the unobservable interdependency between their efforts and their incentive to cooperate under team incentives are high.     

信贷约束与农户非正规金融选择

本文考察来自正规金融机构的信贷约束对农户选择非正规金融的影响。基于农户调研,本文首先辨别农户受到的各种信贷约束,并将其与农户融资成本相结合,构建农户融资的理论模型。实证研究采用双变量Probit模型比较各种信贷约束对选择非正规金融的影响。研究发现：供给型和需求型信贷约束都显著地促进农户选择非正规金融。需求型信贷约束中,风险约束较大程度地促进农户通过非正规金融渠道融资。研究结论对制定农村金融政策将提供重要参考。     

Self-selection and Earnings of Migrants: Evidence from Rural China

Using data from a rural household survey in China, this paper explores the link between employment choice (nonworking, local farm work, local nonfarm work and migratory work) and migrant earnings. We find significant self-selection in migration. Youths, men, better-educated individuals and those in good health are more likely to migrate. In terms of unobserved characteristics, we find positive selection in migration to be related to the alternatives of not working and local farm work, and negative selection to be related to local nonfarm work. Controlling for self-selection, the wage returns to gender (male), education and health are lower than those obtained from OLS, and the returns to experience are higher. More importantly, we find different self-selection between individuals who have moved as pioneers and migrants from households in which other members have already migrated.     

The market response to corporate scandals involving CEOs

This article examines corporate scandals of both a financial and nonfinancial nature between 1993 and 2011 which is expressly linked to a firm’s CEO. Findings suggest that in the short run, investors react adversely to such events and that recalcitrant CEOs end up costing their shareholders dearly. Such scandals are more likely to occur among large firms, firms with insiders on the board and where the value of options granted to a firm’s managers is substantial. However, firms with more cash flows are less likely to be mired in such scandals, and their stock returns are less likely to be affected. There is an increase in stock price volatility of affected firms in the days following the announcement of the scandal. A point of respite for investors is the damage being confined to the short run. The stock price performance of the firms affected by the scandals matches the performance of control firms in the long run post-announcement. However, the operating performance of the sample firms is better than their matched counterparts in the years after the scandal. We contribute to the extant literature by considering corporate scandal events that are the doings of a firm’s CEO and not necessarily financially motivated.     

Selection Bias in Web Surveys

At first sight, web surveys seem to be an interesting and attractive means of data collection. They provide simple, cheap, and fast access to a large group of potential respondents. However, web surveys are not without methodological problems. Specific groups in the populations are under-represented because they have less access to Internet. Furthermore, recruitment of respondents is often based on self-selection. Both under-coverage and self-selection may lead to biased estimates. This paper describes these methodological problems. It also explores the effect of various correction techniques (adjustment weighting and use of reference surveys). This all leads to the question whether properly design web surveys can be used for data collection. The paper attempts to answer this question. It concludes that under-coverage problems may solve itself in the future, but that self-selection leads to unreliable survey outcomes.     

The Welfare Returns to Finer Targeting: The Case of The Progresa Program in Mexico

It is common in developing countries to attempt finer targeting of the benefits from social safety net programs through combining different targeting methods. We evaluate the returns to finer targeting in the context of the PROGRESA program in Mexico. This program is a prominent program in the literature reflecting the fact that it has been widely evaluated, is perceived to be well targeted, and has been used as a prototype for many other programs in the region and beyond. We also identify the relative incremental contribution of each targeting method to the overall targeting performance of the program. We find that geographic targeting dominates demographic targeting (based on linking transfer levels to demographic composition), which in turn dominates household proxy-means targeting. However, the contribution of proxy-means targeting increases substantially as the program expands into less marginal localities. Adjusting for incomplete take-up increases the targeting performance of the program only slightly. JEL Code: D3, H50, O15 Disclaimer: The views expressed in this paper are those of the author and should not be attributed to the International Monetory Fund, its Executive Board, or its management.     

Declining Returns to Education in Norway? Comparing Estimates across Cohorts,Sectors and over Time

We examine the role of the Norwegian education system in explaining the moderate and stable earnings dispersion in Norway. Estimating earnings equations for 1980 and 1990, we find that returns to education have been remarkably stable in Norway, also when we compare returns to education across different sectors of the economy. Our analysis controls for self-selection into education by using an instrumental variable technique. We estimate separate education earnings profiles for different cohorts to identify the effect on wage premiums of the large changes that have taken place in the Norwegian education system. The substantially higher level of educational attainment for more recent cohorts does not, cet. par. , seem to have a negative effect on educational wage premiums for these younger cohorts.
JEL classification: J 24, J 31, I     

Sequential Adoption of Site-Specific Technologies and Its Implications for Nitrogen Productivity: A Double Selectivity Model

This paper analyzes the sequential decision to adopt two site-specific technologies, soil testing and variable rate technology, and the impact of adoption on nitrogen productivity. The results indicate that while farm location was a key variable influencing adoption of soil testing, farm size, human capital, and innovativeness of farmers had a significant impact on adoption of variable rate technology in four Midwestern states. A double selectivity model applied to correct for sample selection bias shows that adoption leads to significant gains in nitrogen productivity for farms with below average soil quality but statistically insignificant gains for farms with above average soil quality.     

Firm-level interactions between exporting and productivity: Industry-specific evidence

This paper investigates interactions between exporting and productivity at the firm level, using a panel of firms in the UK chemical industry. This is both highly technology intensive and the UK’s largest exporting sector. We find exporters are more productive than non-exporters, but are also on average smaller. This superior productivity performance among exporters appears to be caused by both self-selection and learning-by-exporting effects. In contrast to other studies, we find learning effects are significantly positive among new entrants, weaker for more experienced exporters and negative for established exporters. JEL no. F14, D21, L65     

Would Switching to Timely Reviews Delay Quarterly and Annual Earnings Releases?

The SEC recently issued a proposal to modernize and clarify the regulatory structure of securities offerings. The proposal would allow companies to access capital markets on an almost continuous basis but would require strengthening of the role of independent accountants and other gatekeepers in the registration process. The Commission is seeking comment on whether it should add to the proposed practices the fact than an independent accountant performed a timely review under SAS 71 of an issuer's quarterly financial information (SEC, 1998, p. 231). This is the most recent of several proposals, made by the SEC and others, that provides incentives for companies to purchase quarter-end (timely) reviews of their quarterly data. Some managers who currently have their quarterly earnings reviewed only at year-end (retrospective reviews) argue that having a timely review would delay interim earnings releases. Proponents of timely reviews deny that this would occur, and assert that shifting certain review procedures into interim periods would decrease the time needed to release annual earnings.We estimate the quarterly and annual reporting lags that would occur if companies currently selecting retrospective reviews switched to timely reviews. Our results indicate that quarterly earnings release lags would increase, as opponents of mandatory timely review have argued. Switching to timely review would reduce annual earnings release lags only when interim earnings contain unusual components.