Assuming that the amount of human capital per worker and the technology are held fixed in each country, can you recommend a policy to generate a doubling of real GDP per capita in Albernia from $20,000 to $40,000? Albernia should increase its human capital per worker to $30,000. Albernia should increase its physical capital per worker to $30,000. Albernia should increase its physical capital per worker to $20,000. Albernia should increase its level of labor.