We analyze the impact of obsolescence of economic inventions by incorporating maintenance costsin the endogenous growth model of expanding product varieties. This contrasts with the existingliterature, which ignores maintenance costs and uses the model of quality improvements todescribe...

Reimbursement of commuting costs by employers has attracted little attention from economists. We develop a theoretical model of a monopsonistic employer who determines an optimal recruitment policy in a spatial labour market with search frictions and show that partial reimbursement of commuting...

This paper analyzes measures that limit firms' profit shifting activities in a model that incorporates heterogeneous firm productivity and monopolistic competition. Such measures, e.g. thin capitalization rules, have become increasingly widespread as governments have reacted to growing profit...

In this paper we propose a novel way to model the labor market in the context of a New-Keynesian general equilibrium model; incorporating labor market frictions in the form of hiring and firing costs. We show that such a model is able to replicate many important stylized facts of the business...

Exploiting the exogenous variation in childcare costs caused by a Swedish childcare reform, we are able to identify the causal effect of childcare costs on fertility in a context in which childcare enrollment is almost universal, user fees are low, and the labor force participation of mothers is...

Who does, and who should initiate costly certification by a third party under asymmetric quality information, the buyer or the seller? Our answer '€" the seller '€" follows from a non-trivial analysis revealing a clear intuition. Buyer-induced certification acts as an inspection device,...

The present paper provides an economic analysis of vicarious liability that takes information rents and monitoring costs to be borne by the principal explicitly into account. In the presence of information rents or if the principal is wealth constrained herself, vicarious liability need not...

We study the Medicare Part D prescription drug insurance program as a bellwether for designs of private, non-mandatory health insurance markets, focusing on the ability of consumers to evaluate and optimize their choices of plans. Our analysis of administrative data on medical claims in Medicare...