Population Law is not the same at all times and in all places. Each economic stage of development has its own population law. The different development of the means of production changes the conditions. Future conditions of economy are going to be significantly different from those in the past. First the reduction of the number in population, second the changing age structure of the population, third the saturation with many material goods, fourth the decrease of the domestic growth of the gross national product and distribution, fifth in creasing environmental problems with resistance to tolerate polluting industries, sixth changes in the world economic division of preoduction with an increased production of manufactured products from developing countries, and seventh growth in the population lead to a sifting effect which pushes the weaker groups of the population into a subproletareate.