Representative longitudinal data for German firms (establishments or enterprises) that can be used for scientific analyses are mainly from two sources, the IAB Establishment Panel and the AFiD-Panel based on surveys performed by the Statistical Offices. This paper compares the data from these...

This paper focuses on the importance data issues to the analysis of growth, poverty and economic inequality. We introduce a number of major databases frequently used in applied research on growth, poverty and global and international inequality. A discussion of data quality, data consistency,...

Neben bereits seit längerer Zeit laufenden Kooperationsprojekten zwischen Statistischen Ämtern und externen Wissenschaftlern sind in jüngster Zeit bei den großen amtlichen Datenproduzenten Forschungsdatenzentren (FDZ) entstanden, die Wissenschaftlern den Zugriff auf Mikrodaten aus...

Dieser Beitrag stellt die seit 2000 in Schmollers Jahrbuch / Journal of Applied Social Science Studies erscheinende Artikelserie European Data Watch vor. Die Beiträge zu dieser Serie stellen Datensätze für Personen und Firmen vor, die von empirisch arbeitenden Wirtschafts- und...

Ant Colony Optimization is a relatively new meta-heuristic that has proven its quality and versatility on various combinatorial optimization problems such as the traveling salesman problem, the vehicle routing problem and the job shop scheduling problem.(...)

A consequence of the Hahn-Banach theorem is the classical bipolar theorem which states that the bipolar of a subset of a locally convex vector pace equals its closed convex hull.(...)

The Fundamental Theorem of Asset Pricing states - roughly speaking - that the absence of arbitrage possibilities for a stochastic process S is equivalent to the existence of an equivalent martingale measure for S. It turns out that it is quite hard to give precise and sharp versions of this...

The quarterly International Economic Trends is a compilation of data on the G-7 countries and the euro area, including output, inflation, labor markets, interest rates, government budgets, international trade, and more. A brief essay in each issue covers a topic relevant to international economics.