This paper analyzes the interday stability of the price process using transaction data. While the vast majority of empirical studies on the microstructure of financial markets rests on the tacit assumption that observed prices are generated by a time-invariant price process, we question this...

This paper discusses the performance of popular mismatch indexes proposed by Lilien (1982), Jackman and Roper (1987), Jackman, Layard and Savouri (1991), and Lambert (1988). Results in the literature show that, with the exception of Lambert’s index, measures of mismatch reveal decreasing or at...

The paper illustrates finite sample problems of regression models with I(1) variables. The importance of drifts on test statistics is analysed both analytically and by simulation methods. Moreover, Haavelmo's famous example for the presence of some simultaneous equation bias is considered in the...

The rising trends both in drug addiction and crime rates are of major public concern in Germany. Surprisingly, the economic theory of crime seems to ignore the drugs-crime nexus, whereas the criminological literature considers illicit drug use a main reason of criminal activities. This paper...