From the 1970's, Foreign Direct Investment (FDI) flowed into host countries. With the development of economy in host countries the environment deteriorated. The overall goal of this paper is to estimate whether the impacts of FDI positive or negative on environment in host countries. To meet...

The introduction of mobile broadband technology, smartphones and dongles has resulted in a tremendous increase of mobile data traffic. Future demand for more capacity can be met by allocation of more bandwidth and new spectrum bands to mobile communication. But spectrum is a scarce resource and...

Since the beginning of the new century our electricity system is changing rapidly. Distributed energy resources, such as wind or solar energies are becoming more and more important. These energies are producing fluctuating electricity, which is fed into low voltage distribution grids. The...

The numbers of users and usage of mobile data service are increasing dramatically due to the introduction of smartphones and mobile broadband dongles. For the next decade the mobile broadband market is expected to grow and reach a level where the average data consumption per user is orders of...

This paper investigates whether political competition plays an important role in determining the level of agricultural protection. In order to do so, we exploit variation in political and economic data from 74 developing and developed countries for the post-war period. Our results robustly show...

Das Verbundforschungsvorhaben untersuchte regional differenzierte Änderungen agrarrelevanter Extremwetterlagen in Deutschland und deren Auswirkungen auf die Landwirtschaft einschließlich Sonderkulturen und Forstwirtschaft. Auswertungen der Stationsdaten von 1961 bis 2013 des Deutschen...

We measure the impact of low cost transport by rail in Malawi on the dispersion of agricultural commodities prices across markets, by exploiting the quasi experimental design of the nearly total collapse of domestic trade by rail in January 2003, due to the destruction of a railway bridge at...

Climate change researchers predict a dramatic increase in global average temperature over the next decades. We use past temperature and precipitation fluctuations to investigate whether changes in temperature and precipitation are associated with decreases in economic growth. A GMM panel...

We show that much of Africa s recent growth and poverty reduction can be traced to a substantive decline in the share of the labor force engaged in agriculture. This decline has been accompanied by a systematic increase in the productivity of the labor force, as it has moved from low...

This paper explores the impacts of traditional agricultural insurance that offers protection against climatic shocks on small-scale tobacco farmers in Colombia after a period of substantial crop failures. Our identi cation strategy bene ts from a natural experimental setup of the form in which...