This article analyses the school performance of migrants dependent on peer groups in different international schooling environments. Using data from the international OECD PISA test, we consider social interaction within and between groups of natives and migrants. Results based on social...

This paper examines educational outcomes of pupils selected to secondary school types by different tracking regimes in a German state: The traditional regime of streaming pupils after fourth grade of elementary school is compared to a regime in which pupils are selected into different secondary...

Based on monthly observations, I specify an econometric model capturing the driving forces behind the crude oil price series in recent years. A large set of covariates, such as supply and demand variables as well as futures market variables, is used to test the impact on the crude oil price....

We estimate the Dollar exposure of German DAX corporations. Our results are based on a new time-variant, APT-based and panel econometric extension of the exchange-rate exposure model in the tradition of Adler and Dumas (1984) and Jorion (1990). Our stock market data consist of 28 performance...

In this paper I readdress the result that capital income taxes are bad instruments for pure redistribution and should be zero in the long run. In a neoclassical growth model a capital income cum investment subsidy tax, which is not distorting accumulation, is considered to investigate if net...

We analyze a situation where a principal wants to induce firms to produce an output, e.g. electricity from renewable energy sources. Firms can undertake non-contractible investments to reduce production costs of the output. Parts of these investments spills over and also reduce production costs...