Theory predicts a positive relationship between market concentration and profitability in most scenarios. In empirical work, however, this relation is frequently not found or only a weak connection is observed. We compare the performance of concentration and market share variables, which are...

This paper studies the causal effect of giving first birth and how that effect changes by the 2007 reform in parental benefits in Germany. We further investigate how the reform affects the selection of women into motherhood and how that selection effect affects labor market outcomes. A large...

To manage an effective customer loyalty program, third party logistics service providers (3PLs) must understand the determining factors, as well as cultural background on loyalty. This book develops a model of customer loyalty, which is then validated using empirical data from nearly 800...