In the case of health, the pattern was similar. There is little evidence of trend change in health prior to the middle of the eighteenth century, unless one goes back to the transition from hunting and gathering to agriculture, at which time things got worse. And while there existed health differences among countries prior to industrialization, with the tropics being particularly unhealthy, the gap was small in comparison to what was to follow.The same countries that led the pack in terms of income growth saw health improve first, and as with income, many countries that started their health improvements later experienced gains at a speed far faster than anything the leaders had achieved. This was particularly true during the “international epidemiological transition” in the middle of the twentieth century, when a number of health technologies were transferred rapidly from the developed to the developing world (see Acemoglu and Johnson 2007).
đang được dịch, vui lòng đợi..