Traditional econometric analysis concentrate on classical methods which are far from suitable handling actual economic problems. Modern econometric analysis tries to develop new approaches from an economic perspective. As a consequence, there is less of a unified econometric theory than in former times. Specific branches which require specific methods have been established. Modern time series and duration analysis, panel data analysis, microeconometrics, evaluation methods, and specific data problems are examples of these new approaches. In this book leading German econometricians in different fields present survey articles of the most important new methods in econometrics. The book gives an overview of the field and it shows progress made in recent years and remaining problems.