<DIV><P>Recent data show wide disparity between Japan and the United States in the effectiveness of their health care systems. Japan spends close to the lowest percentage of its gross domestic product on health care among OECD countries, the United States spends the highest, yet life expectancies in...</p></div>

Declining population as well as population aging has substantial impacts on the economy and on the society. By contrast, the size of the population usually does not matter for economic development, if it is stable; Switzerland and Sweden, for example, are rich countries with fewer than 10 million...