The ex ante theory of collateral states that better informed lenders, such as informal lenders, rely less on collateral. We test this by contrasting the use of collateral between formal and informal lenders in the same market. Indeed, formal lenders rely more often on collateral, controlling for...

We model mortgage refinancing as a bargaining game involving the borrowing household, the incumbent lender, and an outside bank. In equilibrium, the borrower's ability to refinance depends both on the competitiveness of the local banking market and on the cost of switching banks. We find...

Does the mere presence of big banks affect macroeconomic outcomes? Gabaix (2011) shows that idosyncratic shocks can have aggregate effects if the distribution of firm sizes in manufacturing follows a power law distribution. Our contribution is two-fold. First, we expand the theory of granularity...

The massive decline in international trade in 2008/09 is often attributed to the global deterioration in financial conditions after the bankruptcy of a US investment bank, Lehman Brothers. This paper examines the association between external finance and firm activity in Germany in more detail....

Over the last thirty years or so the developments in the area of monetary and macroeconomic policies have been quite substantial. Within the new consensus macroeconomics (NCM), monetary policy is upgraded while fiscal policy is downgraded. This new monetary policy has been the main instrument of...

Within the New Consensus Macroeconomics, monetary policy is upgraded while fiscal policy is downgraded. This new monetary policy has been the main instrument of policy under the guise of inflation targeting, an approach pursued by a number of central banks worldwide. This book raises problems...