structural stability of the relationship. We then specify a nonparametric panel data model with country-specific effects …

In many situations the applied researcher wants to combine different data sources without knowing the exact link and … merging rule. This paper introduces a theoretical framework how two different regional administrative data sources can be … regional data sources of the federal German statistical office and of the federal German employment office. …

the curse of dimensionality in estimating the average expenditure share from cross-section data. We estimate bounds on …, nonseparable heterogeneity and solve the "zeros problem" of demand by including zeros in the estimation. We also use panel data to … elasticities in the scanner data we consider. Thus, it is very important to allow correlation of prices and preferences to …

concerned are data availability for the eastern part of Germany and structural changes within the behavioural equations after …

concerned are data availability for the eastern part of Germany and structural changes within the behavioural equations after … die Verfügbarkeit von Daten in Ostdeutschland, zum anderen die in Folge der Wiedervereinigung bedingten strukturellen …