Introduction :Du latin agricultura (ager, champs et cultura, culture), l'agriculture réfère au processus par lesquels … néolithique) et l'agriculture est à la fondation des civilisations passées et contemporaines de la région. En 1996, 50 pour cent …

, gas, and renewable power plants). It finds that optimal investment in renewable energy may start before coal power has … been phased out and even before investment in gas has started, because doing so allows for smoothing investment over time … and reduces adjustment costs. Gas plants may be used to reduce short-term investment in renewable power and associated …

represented by the decrease in entropy of his beliefs, regardless of his preferences, initial wealth, or investment problem. We …

sector to study the impact of investment subsidies on equilibrium investment and output. Energy and capital are assumed to be … structures are considered for the energy market, free entry and natural monopoly. First, it is shown that investment subsidies … may induce a larger equilibrium investment into cleaner technologies either under free entry or natural monopoly. However …

contractual relationships that link exports from Sub-Saharan Africa to China and investment by Chinese firms in Sub-Saharan Africa … combine trade, aid and investment, which may create 'lock-in' effects. China's trade and investment focus on the commodities …, especially in oil-exporting countries. Chinese investment, however, increasingly involves other sectors, such as the …

adjustment costs on investment. …

Complicated neoclassical models predict that if investment is sensitive to current financial performance, this is a …, refers to the principle of "growth of the fitter" to explain investment-cash flow sensitivities as the workings of a healthy …