Healthy school meals and educational outcomes

This paper provides field evidence on the effects of a diet on educational outcomes, exploiting a campaign lead in the UK in 2004, which introduced drastic changes in the meals offered in the schools of one Borough – Greenwich- shifting from low-budget processed meals towards healthier options. We evaluate the effect of the campaign on educational outcomes in primary schools using a difference in differences approach; comparing educational outcomes in primary schools (key stage 2 outcomes more specifically) before and after the reform, using the neighbouring Local Education Authorities as a control group. We find evidence that educational outcomes did improve significantly in English and Science. We also find that authorised absences – which are most likely linked to illness and health- fell by 14%

Grade retention and educational attainment. Exploiting the 2001 Reform by the French-Speaking Community of Belgium and Synthetic Control Methods

This paper evaluates the effects of grade retention on attainment by exploiting a reform introduced in 2001 in the French-Speaking Community of Belgium whereby the possibility of grade retention in grade 7 was reintroduced. It uses the Synthetic Control Method to identify the best possible pre-treatment control. Data come from three waves of the PISA study (corresponding to periods before and after the reform) that contains test scores of representative samples of 15 year-olds. These are used essentially to answer two questions. First, has the 2001 grade repetition reform at least succeeded at filtering out weaker pupils, pupils who would presumably be disadvantaged by being promoted directly to higher grades. This is a minimum condition for grade retention to be justifiable. Second, do these “treated” students achieve better/worse when they repeat (and attend a lower grade) than when they are “socially promoted”. (and attend the age 15 reference grade 10)? We find significant evidence of positive screening but we fail to demonstrate that those filtered out perform differently under the “grade repetition”.regime than under the “social promotion”regime.Grade retention, educational attainment, synthetic control method

Can Anyone be "The" One? Evidence on Mate Selection from Speed Dating

Marriage data show a strong degree of positive assortative mating along a variety of attributes. But since marriage is an equilibrium outcome, it is unclear whether positive sorting is the result of preferences rather than opportunities. We assess the relative importance of preferences and opportunities in dating behaviour, using unique data from a large commercial speed dating agency. While the speed dating design gives us a direct observation of individual preferences, the random allocation of participants across events generates an exogenous source of variation in opportunities and allows us to identify the role of opportunities separately from that of preferences. We find that both women and men equally value physical attributes, such as age and weight, and that there is positive sorting along age, height, and education. The role of individual preferences, however, is outplayed by that of opportunities. Along some attributes (such as occupation, height and smoking) opportunities explain almost all the estimated variation in demand. Along other attributes (such as age), the role of preferences is more substantial, but never dominant. Despite this, preferences have a part when we observe a match, i.e., when two individuals propose to one another.

How private is private information?:The ability to spot deception in an economic game

We provide experimental evidence on the ability to detect deceit in a buyer-seller game with asymmetric information. Sellers have private information about the buyer's valuation of a good and sometimes have incentives to mislead buyers. We examine if buyers can spot deception in face-to-face encounters. We vary (1) whether or not the buyer can interrogate the seller, and (2) the contextual richness of the situation. We find that the buyers' prediction accuracy is above chance levels, and that interrogation and contextual richness are important factors determining the accuracy. These results show that there are circumstances in which part of the information asymmetry is eliminated by people's ability to spot deception

Friendships and Favouritism on the Schoolground - A Framed Field Experiment

We present experimental evidence on favouritism practices. Children compete in teams in a tournament. After the first round of a real effort task, children indicate which group member they would prefer to do the task in the second round, for the benefit of the team. Friends are much more likely to be chosen than others after controlling for performance. We also find that children who are favoured by their friend subsequently increase performance. Consequently, favouritism does not hurt efficiency. These results show the importance of observing performance ex post in order to properly evaluate the efficiency implications of favouritism

Welfare Improving Employment Protection

This paper presents a theoretical model to show that in sectors where workers invest in firm specific knowledge employment protection legislation can raise employment, productivity and welfare. The model also predicts a U-shaped relation between firing costs and unemployment. Finally, it gives a rationale for the observation that more educated workers tend to have better protected jobs.employment protection, human capital, hold-up, reforms, welfare

A Public Dilemma: Cooperation with Large Stakes and a Large Audience

We analyze a large-stakes prisoner's dilemma game played on a TV show. Players cooperate 40% of the time, demonstrating that social preferences are important; however, cooperation is significantly below the 50% threshold that is required for inequity aversion to sustain cooperation. Women cooperate significantly more than men, while players who have "earned" more of the stake cooperate less. A player's promise to cooperate is also a good predictor of his decision. Surprisingly, a player's probability of cooperation is unrelated to the opponent's characteristics or promise. We argue that inequity aversion alone cannot adequately explain these results; reputational concerns in a public setting might be more important.

Reducing Polarization on Abortion, Guns and Immigration: An Experimental Study

We study individuals' willingness to engage with others who hold opposite views on polarizing policies. A representative sample of 2,507 Americans are given the opportunity to listen to recordings of fellow countrymen and women expressing their views on immigration, abortion laws and gun ownership laws. We find that most Americans (more than two-thirds) are willing to listen to a view opposite to theirs, and a fraction (ten percent) reports changing their views as a result. We also test whether emphasizing having common grounds with those who think differently helps bridging views. We identify principles the vast majority of people agree upon: (1) a set of fundamental human rights, and (2) a set of simple behavioral etiquette rules. A random subsample of people are made explicitly aware they share common views, either on human rights (one-third of the sample) or etiquette rules (another one-third of the sample), before they have the opportunity to listen to different views. We find that the treatments induce people to adjust their views towards the center on abortion and immigration, relative to a control group, thus reducing polarization