14 - Higher wages in a nation has a few other concomitant influences in the pull factor. When a country has a higher wage it also means that this country can offer more jobs, better job conditions and a “better life” overall, once a stronger economy means higher purchase power. A good example was the brain drain to the U.S. in the latter half of the 20th century, seduced by the "American way of life".
15 - The literacy rate is the amount of people who can read and write in a country. There is usually a correlation between development and high literacy rates, mostly because wealthier countries can provide education, health care, and technology to its citizens. Consequently, with better conditions of life and education, countries with a high literacy rates have more educated citizens, able to develop the nation's industry, services and technology, having a direct feedback effect.
