This study constructs a simple, two-sector Malthusian model with agriculture and industry, and use it to identify the determinants of subsistence income. We make standard assumptions about preferences and production technology, but by contrast to existing studies we assume that children and...

English fertility history is generally regarded as having been composed of two re-gimes: an era of unregulated marital fertility, from at least 1540 to 1890, then the modern era, with regulated marital fertility, lower for higher social classes. We show there were in fact three fertility regimes...