Here are entered works on laborers who migrate from one section to another section of the same country. Works on nationals of one country working in another country are entered under Foreign workers.
Here are entered works on the theory that the initial effect of modernization in human societies is a growing margin of births over deaths and an accelerating rate of population growth, and that at a later stage of socioeconomic development the size of the family is reduced by birth control and the birth rate falls, eventually reducing the rate of population growth.
Here are entered works on the transition between types of energy systems, such as the transition from systems based on fossil fuels to systems based on renewable and clean energy sources.
Here are entered works on the transition between types of energy systems, such as the transition from systems based on fossil fuels to systems based on renewable and clean energy sources.