In recent years, the government, of African Countries has assumed major responsibilities for economic reforms and growth. In attempting to describe their economies, economists (policymakers) in many African Countries have applied certain models that are by now widely known: Linear programming...

Several tools are routinely used to predict or analyze the impact of employment policies: macroeconometric models, small-scale GE models, ex post evaluations based either on macroeconomic time series or on microeconomic data. We present here a new instrument whose methodology is intermediate...

Empirical literature on investment and output dynamics is characterized by two robust stylized facts at the macro level. First, investment is considerably more volatile than output. Second, fluctuations of output and investment are highly synchronized. Furthermore, at the micro level, firm...