The present paper thoroughly explores second-best efficient allocations in an adverse selection insurance economy. We start from a natural extension of the classical model, assuming less than perfect risk perceptions. We propose first and second welfare theorems, by means of which we describe efficiencyenhancing policies. Notions of weak and strong adverse selection are promising for interpreti...

conclusions: marital age, and socioeconomic status had a direct association, and hopefulness and marital satisfaction had an indirect one with iranian women’s decision for timing motherhood. therefore, this is the responsibility of policy-makers and healthcare providers to advise women by providing appropriate interventions and facilities. results: the results revealed that among direct pathway...

In this paper, we explore the dynamic properties of an endogenous growth model with finite patent length. We show that there exists a unique equilibrium growth path and that this path exhibits damped oscillations in contrast to the equilibrium path of an endogenous growth model with infinite patent length.We also examine the effects of patent policy on social welfare and show that infinite pate...

In this paper we provide a nonparametric treatment of identification in models with social spillovers. We consider a setting with ‘high’ and ‘low’ type individuals. Individual outcomes depend upon the fraction of high types in one’s group. We refer to this dependence as a social spillover or peer group effect. We define estimands measuring local and global spillover strength as well as the outc...

We study the co-evolution of social participation and social capital accumulation, taking the view that the former contributes to the latter, and both contribute to socially enjoyed leisure. We show that a process of substitution of private for social activities (observable in some advanced, affluent economies), might be self-reinforcing and lead to a Pareto-dominated steady state. We find some...

We model virtue as an asset on the marriage market: since men value virginity in prospective mates, preserving their virtue increases girls’ chances of getting a "good" husband, and therefore allows for upward social mobility. Consistent with some historical and anthropological evidence, we find that the diffusion (and the social value) of virginity, across societies and over time, can be deter...

We combine survey responses, network data, and medical records in order to examine how friends affect the decision to get vaccinated against influenza. The random assignment of undergraduates to residential halls at a large private university generates exogenous variation in exposure to the vaccine, enabling us to credibly identify social effects. We find evidence of positive peer influences on...

Research on the effects of positional concerns on individuals’ attitudes and behaviour is sorely lacking. Therefore, using the International Social Survey Programme 1998 data on 25’000 individuals from 26 countries this paper investigates the impact of relative income position on facets of social capital, covering horizontal and vertical trust as well as norm compliance. Testing relative depriv...

This paper answers the question posed in the title within a model where agents receive idiosyncratic, wage-rate shocks that are privately observed. When the model social insurance system is comprised by the US social security and income tax system, then the maximum ex-ante welfare gain to improved insurance is equivalent to a 12.3 percent increase in consumption. We determine the reasons behind...

Following the present atmosphere of budgetary cuts we analyze the effects of fiscal consolidation on the composition of government expenditures by functions. Using a dynamic voter group decision model and exploiting the panel structure of the dataset – 26 OECD countries over the period 1970-1997by GMM estimation we find that fiscal adjustments protect social expenditure. Nevertheless, we find t...