Traditional specification testing does not always improve subsequent inference. We demonstrate by means of computer experiments under which circumstances, and how severely, data-driven model selection can destroy the size properties of subsequent parameter tests, if they are used without adjusting for the model-selection step. The investigated models are representative of macroeconometric and microeconometric ...
Social comparisons are an essential source of information about the self. Research in social psychology has shown individual variation in the tendency toward comparison with other people's opinions and abilities, raising the question of whether social comparisons are driven by psychological dispositions. To test the empirical validity of this proposition, Gibbons and Buunk (1999) created an instrument ...
This paper focuses on fraud detection in surveys using Socio-Economic Panel (SOEP) data as an example for testing newly methods proposed here. A statistical theorem referred to as Benford's Law states that in many sets of numerical data, the significant digits are not uniformly distributed, as one might expect, but rather adhere to a certain logarithmic probability function. To detect fraud we derive ...
This paper demonstrates spatial evaluation methods on data from the German Socio-Economic Panel (SOEP) study using geo-coordinates and spatially relevant indicators from remote sensing data. By geocoding the addresses of private households (while not identifying them by name and while guaranteeing their complete anonymity) with block-level geographic precision, respondents' data can now be analyzed ...
In der Wissenschaft wird zu Recht viel von den Daten der Volkszählung 2010/2011, dem ersten Zensus seit der deutschen Wiedervereinigung, erwartet. Während die Volkszählung in den 80er Jahren in Westdeutschland noch hoch kontrovers war, gab es bislang kaum Streit um die jetzt anstehende Totalerhebung. Man kann nur wünschen, dass dies so bleibt. Die Zensusdaten sind für viele administrative und wissenschaftliche ...
