Many empirical questions in economics and other social sciences depend on causal effects of programs or policies. In the last two decades much research has been done on the econometric and statistical analysis of the effects of such programs or treatments. This recent theoretical literature has...

Many empirical questions in economics and other social sciences depend on causal effects of programs or policies. In the last two decades much research has been done on the econometric and statistical analysis of the effects of such programs or treatments. This recent theoretical literature has...

Peter Plötz/Klaus Bolz: Westhandel der DDR. Eine vergleichende Betrachtung des Handels mit der Bundesrepublik Deutschland und den übrigen OECD-Ländern. Verlag Weltarchiv, Hamburg 1987, 473 Seiten, 55 DM