We show that the family of assignment matrices which give rise to the same nucleolus forms a compact join-semilattice with one maximal element. The above family is in general not a convex set, but path-connected

We study the optimal design of regulation for innovative activities which can have negative social repercussions. We compare two alternative regimes which may provide firms with different incentives to innovate and produce: lenient authorization and strict authorization. We find that corruption...

Sub-Saharan Africa is home today to some of the most unequal countries in the world, in Southern and Central Africa, as well as others that are close to the world average, in Western Africa. Yet, there is no consensus regarding the historical factors that led to such a situation. Given limited...

We analyze assortative multisided assignment games, following Sherstyuk (1999) and Martínez-de-Albéniz et al. (2019). In them players' abilities are complementary across types (i.e. supermodular), and also the output of the essential coalitions is increasing depending on types. We study the...

The paper investigates how product market competition affects the firms' decision to hire altruistic or selfish employees in a mixed duopoly where a public and a private firm compete against each other on prices and quality. When firms offer similar services, so that product competition is...

I use data from the World Input-Output Database and show that trade in information technologies (IT) has a significant contribution to the growth in foreign intermediate goods in 2001-2014 period. China has become one of the major foreign suppliers of IT and has strongly contributed to the rise...

Labor productivity differences between developing and developed countries are much larger in agriculture than in non-agriculture. We show that cross-country differences in agricultural composition explain a substantial part of labor productivity differences. To this end, we group agricultural...

The classical occupational choice model does not explain the simultaneous existence of low and high ability entrepreneurs. In this paper, we study the decision to become an entrepreneur when individuals choose their education level and the economic sector where to operate. We distinguish two...

This paper builds a model that examines firm heterogeneity across two dimensions: productivity and quality. We show that when firms are able to choose their input quality and there exists a negative relationship between a firm's product quality and their marginal cost, this can lead to a...

We propose and characterize a new family of Shapley values for games with coalitional externalities. To define it we generalize the concept of marginal contribution by using a lattice structure on the set of embedded coalitions. The family of lattice structure values is characterized by...