The Diebold-Mariano-Test has become a common tool to compare the accuracy of macroeconomic forecasts. Since these are typically model-free forecasts, distribution free tests might be a good alternative to the Diebold-Mariano-Test. This paper suggests a permutation test. Stochastic simulations...

There is a broad agreement that transportation activity is closely linked to the business cycle. Nevertheless, data from the transportation sector have not been part of the tool kit of business cycle analysts due to long publications lags. With the disseminations of electronic road pricing...

National accounts are subject to major revisions. To improve the reliability of the first release data, it is important to know whether these revisions show systematic patterns, or in other words, whether national accounts are informational efficient in the sense that they incorporate all...