the main objective of this paper is to study the relationship between the energy consumption (energy use intensity), economic growth, and co2 emission in iran. to that end, we use time series data of iran during 1967–2004. in order to examine the long-run relationship among these variables, the johanson-juselius cointegration method is used along with vecm. the main finding of this study shows ...

We study the effect of offering index insurance to groups versus individuals on individual’s savings and insurance decisions in a lab experiment in the field, which offers real index insurance. We also look at how the network relationships among dairy farmers in the Dominican Republics affects the demand for group index insurance. Individuals offered group insurance are exogenously grouped acco...

I postulate that social norms and individuals’ behaviors are shaped by a common process capable of generating a multitude of outcomes. In games of friendship links and behaviors, I propose k-player Nash stability—a family of equilibria, indexed by a measure of robustness given by the number of permitted link changes, which is (ordinally and cardinally) ranked in a probabilistic sense. Applicati...

In an asymmetric coordination (or anti-coordination) game, players acquire and use signals about a payoff-relevant fundamental from multiple costly information sources. Some sources have greater clarity than others, and generate signals that are more correlated and so more public. Players wish to take actions close to the fundamental but also close to (or far away from) others’ actions. This pa...

This paper studies whether conformism behavior affects individual outcomes in crime. We present a social network model of peer effects with ex-ante heterogeneous agents and show how conformism and deterrence affect criminal activities. We then bring the model to the data by using a very detailed dataset of adolescent friendship networks. A novel social network-based empirical strategy allows us...

The objective of this paper is to identify and estimate network formation models using observed data on network structure. We characterize network formation as a simultaneous-move game, where the utility from forming a link depends on the structure of the network, thereby generating strategic interactions between links. Because a unique equilibrium may not exist, the parameters are not necessar...

This paper studies the phenomenon of early hiring in entry-level labor markets (e.g. the market for gastroenterology fellowships and the market for judicial clerks) in the presence of social networks. We o¤er a two-stage model in which workers in training institutions reveal information on their own ability over time. In the early stage, workers receive a noisy signal about their own ability. T...

This paper o¤ers a bridge between the theoretical literature on endogenous network formation and the empirical work on the impact of social networks on economic performance. We provide a theoretical framework of endogenous network formation that yields testable predictions for the network architectures generated by a particular informal institution common in village economies. We test the impli...

We used to marry people to which we were somehow connected to: friends of friends, schoolmates, neighbours. Since we were more connected to people similar to us, we were likely to marry someone from our own race. However, online dating has changed this pattern: people who meet online tend to be complete strangers. Given that one-third of modern marriages start online, we investigate theoretical...

This paper studies human capital investment in a spatial setting with interpersonal complementarities. A mixture of local and global social interactions affect the cost of acquiring education, and the return to human capital is determined endogenously in the market. We study how spatially segregated investment equilibria are affected by an increase in the relative importance of global vis-á-vis...