Inequality, Technical Change or Leverage?

Exploring the determinants of growing income inequality, I show how constant capital income shares and inequality can be explained without technical change. I show why despite the fact that technical change is capital augmenting, rather than labor augmenting, it may not be sufficient to explain the last few decades of growing capital share of income and inequality due to the balancing mechanism of depreciation. Finally, I show how the growth of leverage, which coincided with the growth of inequality, can explain the growth of capital share of income and inequality. I introduce a simple model of leverage and business cycle and show how leverage is justified by more leverage and how depressed interest rate allows leveraging and inequality growth to persist.