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the hypothesis that the introduction of maize increased population density and Trans-Atlantic slave exports in precolonial … Africa. We find robust empirical support for these predictions. We also find little evidence to suggest maize increased … economic growth or reduced conflict. Our results suggest that rather than stimulating development, the introduction of maize …
Persistent link: https://www.econbiz.de/10011845203
We estimate the cost of transporting corn and the resulting degree of spatial differentiation among downstream firms that buy corn from upstream farmers and examine whether such differentiation softens competition enabling buyers to exert market power (defined as the ability to pay a price for...
Persistent link: https://www.econbiz.de/10012162628
This analysis employs cointegration methods and semiparametric regression in order to assess the integration of maize … rich dataset of 16 series of wholesale maize prices between 2000 and 2008 for Kenya, Tanzanian and Uganda. Distance is … ; cointegration ; semi-parametric ; regression ; partially linear model ; Eastern Africa ; maize …
Persistent link: https://www.econbiz.de/10009011814
We use two approaches to examine the macroeconomic consequences of disruptions in global food commodity markets. First, we embed a novel quarterly composite global production index for the four basic staples (corn, wheat, rice and soybeans) in a standard vector autoregression (VAR) model, and we...
Persistent link: https://www.econbiz.de/10011565633
Biotic factors such as pests create biodiversity effects that increase production risks and decrease land productivity when agriculture becomes more specialized. We show in a Ricardian two-country trade setup that production specialization is incomplete under free trade because of the decrease...
Persistent link: https://www.econbiz.de/10011286489
This paper develops a tractable integrated assessment model of the two-way interaction between biodiversity and the economy. To capture the main causes of biodiversity loss and the economic harm from it, we focus on agriculture and its expansion at the expense of forest land. We answer the...
Persistent link: https://www.econbiz.de/10015372000
This paper analyzes the effects of increased academic standards on both average achievement levels and on equality of opportunity. The five policies evaluated are: (1) universal Curriculum-Based External Exit Exam Systems, (2) voluntary curriculum-based external exit exam systems with partial...
Persistent link: https://www.econbiz.de/10002520228
The fraction of persons holding a college degree differs nearly two-fold across U.S. states. This paper documents data related to state educational attainment differences and explores possible explanations. It shows that highly educated states employ skillbiased technologies, specialize in...
Persistent link: https://www.econbiz.de/10002520908
There is no consensus about the causes of the reduction in business cycle volatility seen in many major economies over the last decade. Using stylised models of the economies of the US, Euro area, UK and Japan, we argue that economic stability has been fostered by improved monetary policy and by...
Persistent link: https://www.econbiz.de/10002521030
In this paper we develop a new way of modelling time variation in term premia. This is based on the stochastic discount factor model of asset pricing with observable macroeconomic factors. The joint distribution of excess holding period US bond returns of different maturity and the fundamental...
Persistent link: https://www.econbiz.de/10002521058