The constraint on informal finance is commonly taken to be high costs and limited supply. But the majority of informal investors - family and friends - is often willing to supply funds at negative returns, and yet many borrowers tap family and friends only as a last resort. We explain this...

We study human trafficking in a marriage market model of prostitution. When trafficking is based on coercion, trafficking victims constitute a non-zero share of supply in any unregulated prostitution market. We ask if regulation can eradicate trafficking and restore the outcome that would arise...

Certain markets are illicit because part of the supply is coerced, but little is known about the optimal regulation of such markets. We model a prostitution market with voluntary and coerced prostitutes and ask what regulation can restore the benchmark outcome that would arise under...

Financing from family and friends is the predominant type of informal finance. This paper proposes a theory that reconciles two seemingly paradoxical traits of this form of finance, namely, it is often provided at negative prices but nevertheless eschewed by borrowers. A central prediction is...

We study human trafficking in a marriage market model of prostitution. When trafficking is based on coercion, trafficking victims constitute a non-zero share of supply in any unregulated prostitution market. We ask if regulation can eradicate trafficking and restore the outcome that would arise...

The constraint on informal finance is commonly taken to be high costs and limited supply. But the majority of informal investors - family and friends - is often willing to supply funds at negative returns, and yet many borrowers tap family and friends only as a last resort. We explain this...