A new solar rechargeable flashlight - backed up by three AA batteries that last up to three years (costing $0.80) - gives up to 7 hours of light.
Bill & Melinda Gates donate $105 million to evaluate which public health programs have the greatest impact and hence deserve more funding.
Creditor rights protection has often been heralded as fostering financial and economic development. Recent research questions this, showing that more creditor-friendly bankruptcy systems result in inefficiently low innovation levels in industries that need it most.
In a new book Messrs. Humphreys, Sachs and Stiglitz explain why countries with lots of natural resources tend to do worse than countries with less resource wealth.