Sustainable intensification of Ghana’s smallholder farming is critical to mitigate rural poverty. Innovations for sustainable intensification include agro-ecological practices, which build up soil fertility, and mulching, which conserves soil moisture. To stimulate the adoption of these...

The primary aim of the paper is to place current methodological discussions on empirical modeling contrasting the 'theory first' versus the 'data first' perspectives in the context of a broader methodological framework with a view to constructively appraise them. In particular, the paper focuses...

Im Mittelpunkt dieses Beitrags steht eine Analyse des kalifornischen Strommarktdebakels und der Lehren aus den dortigen Ereignissen. Das Papier geht auf die Entwicklung der Märkte ein und zeigt die Gründe für das Scheitern des kalifornischen Übergangsmodells auf. Die Analyse zeigt, dass es...

Gegenstand dieses Beitrags ist ein Überblick über den Status quo des Strombinnenmarkts und die jüngsten Kommissionsvorschläge für eine Änderung der Stromrichtlinie und den Erlass einer Netznutzungsverordnung für grenzüberschreitende Stromlieferungen. Besonderes Augenmerk wird der Frage...

Combining a Dynamic Computable General Equilibrium (DCGE) model of the Yemeni economy with a microsimulation model that captures the link between changes in household incomes and changes in nutrition status, this paper provides a quantitative assessment of the agricultural, economy-wide, and...

The German current account balance has moved from surplus to deßcit in the course of unificalion. A theorelical model for the current account, encompassing the elaslicities, the monetary, and the absorptions approach, is set up and lested for Germany and the United States, using cointegration...

Over the past 15 years there has been remarkable progress in the specification and estimation of dynamic stochastic general equilibrium (DSGE) models. Central banks in developed and emerging market economies have become increasingly interested in their usefulness for policy analysis and...

This paper proposes an approach for estimating the uncertainty associated with model-based macroeconomic forecasts. We argue that estimated forecast intervals should account for the uncertainty arising from selecting the specification of an empirical forecasting model from the sample data. To...

Using real-time data, we analyze how the systematic expectation errors of professional forecasters in 19 advanced economies depend on the state of the business cycle. Our results indicate that the general result that forecasters systematically overestimate output growth (across all countries)...

Researchers seldom find evidence of I(2) in exchange rates, prices, and other macroeconomics time series when they test the order of integration using univariate Dickey-Fuller tests. In contrast, when using the multivariate ML trace test we frequently find double unit roots in the data. Our...