Both sides of a two-sided market are usually modeled as markets without product differentiation. Often however, it will be profit maximizing to differentiate one or two sides in two or more types. In a simple theoretical model, inspired by Yellow Pages, we show that this decision crucially...

In this article, we examine the universal service obligation for telephone directories. In most countries, this obligation consists of two parts. First, publishers must offer a comprehensive directory, including all telephone subscribers. Second, this directory should be available to all users....

This paper estimates how the impact of a natural disaster propagates through the production network. More precisely, we look at the excessive rainfall in the summer of 2021 that caused large areas to be severely flooded in Belgium. We first look at the direct effects on firms active in the...

This paper uses firm level panel data of firm provided training to estimate its impact onproductivity and wages. To this end the strategy proposed by Ackerberg, Caves and Frazer(2006) for estimating production functions to control for the endogeneity of input factors andtraining is applied. The...

This paper uses firm level panel data of firm provided training to estimate its impact on productivity and wages. To this end the strategy proposed by Ackerberg, Caves and Frazer (2006) for estimating production functions to control for the endogeneity of input factors and training is applied....

In recent years, Europe has witnessed an accelerated process of economic integration. Trade barriers were removed, the euro was introduced and ten new member states have joined the European Union. This paper analyzes how this process of increased economic integration has affected labor and...

This paper uses firm level panel data of firm provided training to estimate its impact on productivity and wages. To this end the strategy proposed by Ackerberg, Caves and Frazer (2006) for estimating production functions to control for the endogeneity of input factors and training is applied....

Advances in communication technology have led to a remarkable increase in the tradability of services, resulting in a substantial increase in offshoring of services over the last two decades. Research investigating how this surge in service offshoring affects employment, has been largely...