This discussion paper deals with the estimation of a random coefficient model. The virtue of this approach is that it considers firm heterogeneity, which conventional SFA models do not. Applying the model to Polish farms, the results indicate that the conventional random and fixed effect models...

Most of the studies based on the New Empirical Industrial Organization (NEIO) approach use the industry data to estimate the degree of market power at the national level. Yet, only a few empirical studies presented the results that measure the degree of market power at the regional level and...

Any calls to move towards a centrally planned economy or autarky are strongly advised against, as this would only be to the detriment of food security in the Global South.

Der internationale Agrarhandel ist ein Schlüsselfaktor für die globale Ernährungssicherheit. Er schafft ein vielfältigeres Nahrungsangebot (e.g. Krivonos und Kuhn 2019), sichert gegen lokale Produktionsausfälle ab (Glauben et al. 2022) und hilft, sich regionale Produktions- und...