The next three questions refer to the following table. The numbers are the values of income per capita [y], capital stock per capita [k] and human capital per capita (h) in 2019, all relative to the United States. 5. According to the table, and assuming or = 0.3, Japan's level of TFP (productivity) was closest to that of the U.S. 6. For these countries, differences in factors of production are the biggest reason for the differences in per capita GDP relative to the U.S. 7. Norway's productivity is likely to be overstated by these numbers, since it is a major oil exporter