"The proximate cause for Greg's interest in prehistory involved his effort to design a course on comparative economic institutions at Simon Fraser University during the late 1990s. This course was aimed at second and third year students who had seen some basic economics but had no math...

Around 15,000 years ago, almost all humans lived in small mobile foraging bands. By about 5,000 years ago, the first city-states had appeared. This radical transformation in human society laid the foundations for the modern world. We use economic logic and archaeological evidence to explain six...

Until about 13,000 years ago all humans obtained their food through hunting and gathering, but thereafter people in some parts of the world began a transition to agriculture. Recent data strongly implicate climate change as the driving force behind the agricultural transition in southwest Asia....