What is the relationship between entrepreneurial saving practices and reinvestment?  We develop a model of entrepreneurial finance and show that entrepreneurial reinvestment decisions depend on the efficiency of saving practices.  Utilizing a novel micro & small enterprise survey from Tanzania...

Using a unique bank-level dataset on the Ugandan banking system over the period 1999 to 2005, we explore the factors behind consistently high interest rate spreads and margins. While foreign banks charge lower interest rate spreads, we do not find a robust and economically significant...

Competition authorities all over the world worry that integration between search engines (mainly Google) and publishers could lead to abuses of dominant position.  In particular, one concern is that of own-content bias, meaning that Google would bias its rankings in favor of the publishers it...

This paper develops an asymmetric price setting oligopoly model of store opening and closure decisions in the UK supermarket industry which is estimated using a survey of consumer choices and a dataset of store characteristics. The model is used to examine the strategic local entry and exit...

We present a general Cournot model in which each firm may sell multiple quality-differentiated products. We use an upgrades approach, working not with the actual products, but instead with upgrades from one quality to the next. The properties of single-product Cournot models carry over to the...

Rational demand for hedging products, where there is a risk of contractual nonperformance, is fundamentally different to that for indemnity insurance.  In particular, optimal demand is zero for infinitely risk averse individuals, and is nonmonotonic in risk aversion, wealth and price.  For...

This paper analyses collusion-proof multilateral insurance contracts between a risk neutral insurer and multiple risk averse agents in an environment of asymmetric costly state verification.  Optimal contracts involve the group of agents pooling uncertainty and the insurer acting as reinsurer...

This paper addresses the hotly-debated question: do Chinese firms overinvest?  A firm-level dataset of 100,000 firms over the period of 2000-07 is employed for this purpose.  We initially calculate measures of investment efficiency, which is typically negatively associated with...

This paper attempts to address a puzzle in China's investment pattern: despite high aggregate investment and remarkable economic growth, negative net investment is commonly found at the microeconomic level.  Using a large firm-level dataset, we test three hypotheses to explain the existence and...

A large literature describes how local risk sharing networks can help individuals smooth consumption in the face of idiosyncratic economic shocks.  However, when an entire community faces a large covariate shock, and when the transaction costs of transfers are high, these risk sharing networks...