Vietnam is among the countries that are assumed to be highly affected by the impacts of climate change through sea level rise; increased temperature and changes in precipitation resulting in changes in crop water requirements and yields; and changes in river flow with impacts on hydropower and...

We analyze optimal harvesting policy under stochastic price and stock dynamics. We state a set of weak conditions under which the optimal policy can be characterized by a single exercise threshold and show that the value of optimal harvesting and depletion policies can be expressed as the...

The paper examines effects of agricultural extension on crop yields in Kenya controlling for other determinants of yields, notably the schooling of farmers and agro-ecological characteristics of arable land. The data we use were collected by the Government of Kenya in 1982 and 1990, but the...

Neben schlechten Ernteergebnissen hatte Sambia in den letzten Jahren erhebliche Probleme mit der Maisvermarktung, die voll in staatlicher Hand liegt. Erhebliche Maismengen wurden an den Sammelstellen nicht abgeholt und verdarben. Im Zusammenhang mit der guten Ernte von 1985 wurde versucht, das...