Sustained growth depends on innovation, whether it's cutting-edge software from Silicon Valley, an improved assembly line in Sichuan, or a new export market for Swaziland's leather. Developing a new idea requires money, which poses a problem of trust. The innovator must trust the investor with...

The United States economy is struggling to recover from its worst economic downturn since the Great Depression. After several huge doses of conventional macroeconomic stimulus - deficit-spending and monetary stimulus - policymakers are understandably eager to find innovative no-cost ways of...