Basic concepts, Links between energy and the economy, GDP, Two basic drawbacks, GNP, Imperfect indicators, International comparisons, Economic growth, Development, HDI,French GDP structure, Energy chain, Energy accounting, Final energy conversion efficiency,Energy intensity, Two main factors, Value of energy intensity, World energy intensities, Links between growth rates,, GDP per capita function of CENER per capita, Development factors, Substitutions energy - labor, CO2 emissions