The paper introduces for the most frequently used three-dimensional fixed effects panel data models the appropriate within estimators. It analyzes the behaviour of these estimators in the case of no-self-flow data, unbalanced data and dynamic autoregressive models. Then the main results are...

The paper deals with the problems of formalizing econometric models on firm-product level trade data sets, or similar economic flows. A multi-dimensional random effects panel data approach is adopted. Several models are introduced taking into account different types of specific effects,...

The paper introduces for the most frequently used three-dimensional fixed effects panel data models the appropriate Within estimators. It analyzes the behaviour of these estimators in the case of no-self-flow data, unbalanced data and dynamic autoregressive models. Then the main results are...

The paper introduces for the most frequently used three- dimensional panel data sets several random effects model specifications. It derives appropriate estimation methods for the balanced and unbalanced cases and deals with some extensions as well. An application is also presented where the...

The paper introduces for the most frequently used three- dimensional panel data sets several random effects model specifications. It derives appropriate estimation methods for the balanced and unbalanced cases and deals with some extensions as well. An application is also presented where the...