Economists around the world rely in addition to official statistics on business (and consumer) surveys, which are more … partly, be filled by the Ifo World Economic Survey (WES). In this paper we first describe this survey and also examine how …-to-date information about the cyclical stage of the global economy and of major emerging and developing regions including Africa …

unfavorable harvest shocks in other regions of the world significantly curtail domestic economic activity. The effects are much … agriculture in GDP or lower shares of non-agricultural trade in GDP; that is, characteristics that typically apply to low …

. We study an overlooked part of this Columbian Exchange: the effects of New World crops in Africa. Specifically, we test …Columbus's arrival in the New World triggered an unprecedented movement of people and crops across the Atlantic Ocean … Africa. We find robust empirical support for these predictions. We also find little evidence to suggest maize increased …

Using high-resolution data from Africa over the period 1998-2012, this paper investigates the hypothesis that a higher …