Previous empirical evidence which evaluated the accuracy of management earnings or sales forecasts consistently revealed these forecasts to be on average significantly overoptimistic. However, all studies analyzed forecasts from public disclosures, which are an important signal to investors and...

This thesis covers several aspects of competition economics which are analyzed empirically or experimentally. It can be divided into two parts. Chapters 2 and 3 study how competition outcomes (in contests, respectively consumer markets) are affected by the design of the competitive environment....