In an analysis of the formation of unions within a single firm, this paper addresses conditions under which encompassing unions form. It is shown that a production function satisfying decreasing marginal productivity leads to the formation of encompassing unions. This result holds for different...

The paper develops a two-sector general equilibrium search model where goods are produced exclusively in the market and services are produced both in the market and within the households. We use the model to examine how unemployment and welfare are affected by labor taxes in general and sectoral...

This paper discusses the evaluation problem using observational data when the timing of treatment is an outcome of a stochastic process. We show that, without additional assumptions, it is not possible to estimate the average treatment effect and treatment on the treated. It is, however,...

The paper reviews large literature on retirement, keeping in mind the goal of finding a suitable model to the labour market of the older workers in Sweden. The review is divided into six sections. The first section explains the problems of defining retirement. The second section deals with a...

This paper examines the synchronous leisure of spouses and the extent to which spouses spend time together. The time budget data set used in this paper allows for a distinction between simultaneous time-use of spouses and the actual time that spouses meet. A comparison between couples and...

This paper analyzes the design of optimal unemployment insurance in a search equilibrium framework where search effort among the unemployed is not perfectly observable. We examine to what extent the optimal policy involves monitoring of search effort and benefit sanctions if observed search is...

A set of necessary and sufficient conditions for convexity of a transferable utility game in terms of its decomposition into unanimity games is shown to be minimal: none of the conditions is redundant. The result is used to provide an axiomatization of the Shapley value on the set of convex games.

This paper studies a model of how political parties use resources for campaigning to inform voters. We show existence of equilibrium under mild assumptions for an arbitrary number of parties. The main result is that if the parties are more extreme, then they spend less resources on campaigning...