Will Middle-Income Countries Reach Below Replacement Fertility

Total fertility rate of most of developed countries and some developing countries reached to blow replacement level and every period we witness of reduce of total fertility rate in some developing or middle income countries.
About 53 countries of the world are in the middle income level in 2010. We classified these Countries to three groups by total fertility rate:
First; Countries that their total fertility rates over than replacement level, second are reached at replacement level and third are below replacement level.
Total fertility rate of the two countries among above countries has not reported. From the rest of these countries, 22 countries are in group 1, 2 countries are in group 2 and 27 countries are in group 3.
This study is going to assess the main socioeconomic indices of 27 middle-income countries in which their total fertility rate has not reached at replacement level, and according to this index, their future level of decline and the time of their replacement level can be expected.
Methodology of this study is Panel Data Analysis. “Panel data” refers to the pooling of observations on a cross-section of countries, firms, etc, and needed data are worked out from Population Division of United States, World Bank and Statistical Year Books.