These data have not only sparked policy and behavioral studies within each country, but have also in- creased studies of policy and behavior across countries. measure how behavior changes when social policies are introduced or changed, and to build models that can be used to estimate how alternative social policies might change behavior. This investment, in many cases driven by the scientific communities, has allowed academic and government researchers to document and track how socio-economic characteristics of a country's population are evolving, to. Over the past thirty years industrialized nations have increasingly invested resources to develop and maintain general purpose social science surveys of households and individuals. Diese Daten haben die sozial-, wirtschafts- und verhaltenswissenschaftliche Forschung nicht nur auf nationaler Ebene gestärkt, sondern auch länderübergreifende Studien vorangetrieben. Es können darüber hinaus Szenarien zur Abbildung möglicher Verhaltensvariationen unter alternativen sozialpolitischen Maßnahmen entwickelt werden. Social science surveys“ ermöglichen außerdem die Erfassung von Veränderungen des Verhaltens im Zusammenhang mit sozialpolitischen Neuerungen und Veränderungen. Merkmale der Bevölkerung eines Landes und die Beobachtung von Lebensverläufen. In vielen Fällen von der Wissenschaft vorangetrieben, unterstützen diese Studien die Erfassung, Beschreibung und Analyse sozio-ökonomischer. In den vergangenen 30 Jahren haben mehrere Industrienationen zunehmend in Entwicklung, Aufbau und Durchführung von sozialwissenschaftlichen Haushalts- und Personenbefragungen investiert, wobei Längsschnitt- und Panelstudien eine besondere Rolle zukommt. But it rose in Germany, remained about the same in the United States and fell in Great Britain among their younger populations. Income inequality fell in all three countries among the older population. In the United States, younger persons (aged 64 and younger) fared better than older persons (aged 65 and older) while the opposite was the case in Great Britain and Germany. In Germany, as was the case in the United States over their 1980s business cycle, there was a drop in the middle of the income distribution and increases in both tails. In the United States and Great Britain the entire income distribution moved upward in the 1990s.

Our results hold using both summary measures of inequality as well as kernel density estimations. However, gains from economic growth in Great Britain over their 1990s business cycle (1990-2000) were the most equitably distributed. Furthermore, they were more equitably distributed than were the gains in Germany over their 1990s business cycle (1991-2001). Using data from the March Current Population Surveys in the United States, the Household Panel Survey in Great Britain and the Socio-Economic Panel in Germany we find gains from economic growth in the United States over their 1990s business cycle (1989-2000) were more equitably distributed than were the gains over their 1980s business cycle (1979-1989).

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