The Piketty-Krugman Hypothesis states that the rate of return on capital is greater than the rate of economic growth. This means that the wealthy will become wealthier over time, while the poor will become poorer.

The Piketty-Krugman Hypothesis implies that the wealthy will become wealthier over time, while the poor will become poorer. This is because the rate of return on capital is greater than the rate of economic growth, which means that the wealthy will be able to accumulate wealth faster than the poor.

The Piketty-Krugman Hypothesis has been criticized on a number of grounds. Some critics have argued that the data used to support the hypothesis is flawed. Others have argued that the hypothesis does not take into account the effects of government intervention. Still others have argued that the hypothesis is based on a static model of the economy that does not take into account the effects of technological change.

The Piketty-Krugman Hypothesis has a number of policy implications. Some economists have argued that the government should increase taxes on the wealthy in order to reduce wealth inequality. Others have argued that the government should provide more social welfare programs for the poor in order to help them catch up with the wealthy. Still others have argued that the government should invest in education and training programs for the poor in order to help them improve their job prospects.

The Piketty-Krugman Hypothesis is a complex and controversial theory. It is likely that the hypothesis will be modified in the future as new evidence is gathered. However, the basic premise of the hypothesis - that the rate of return on capital is greater than the rate of economic growth - is likely to remain a key issue in economic policy debates for many years to come.