Economics Commons^™

Reviewing The Leverage Cycle, Ana Fostel, John Geanakoplos

Cowles Foundation Discussion Papers

We review the theory of leverage developed in collateral equilibrium models with incomplete markets. We explain how leverage tends to boost asset prices, and create bubbles. We show how leverage can be endogenously determined in equilibrium, and how it depends on volatility. We describe the dynamic feedback properties of leverage, volatility, and asset prices, in what we call the Leverage Cycle. We also describe some cross-sectional implications of multiple leverage cycles, including contagion, flight to collateral, and swings in the issuance volume of the highest quality debt. We explain the differences between the leverage cycle and the credit cycle literature. …

Three Essays On Social Health Insurance In Developing Countries: The Case Study Of Ghana, Stephen Ofori Abrokwah

Dissertations

More than 2 billion people live in developing countries with health systems constrained by inequitable access and inadequate funding. The World Health Organization estimates that more than 150 million of these people suffer financial breakdown every year having to make unexpected out-of-pocket expenditures for emergency care.

To improve health and reduce the financial burden on households, a number of developing countries, including Ghana, Colombia, and Peru, have recently introduced social health insurance programs which are heavily subsidized. The dissertation is a collection of three essays looking at how individual health care choices changed as a result of the availability of …