Macroeconomic and sector-specific shocks exert differential effects on investment in disaggregate sectoral data. The response to macroeconomic shocks is hump-shaped, just as in aggregate data. The effects of sectoral innovations decrease monotonically. A calibrated model of investment with...

Thomas Malthus identified a crucial tension at the heart of a market economy: While an accumulation of wealth is necessary to provide the capital investment needed to generate growth, too much accumulation will cause planned saving to exceed profitable investment, which will result in secular...