Our Shrinking Economic Toolkits

NEW DELHI – In the natural world, humans stand out for the complexity of the tools, technologies, and institutions that we have developed. According to the anthropologist Joseph Henrich, we owe this success to our ability to accumulate, share, and adapt cultural information across generations. But just as interconnection causes our “collective brains” to expand over time, isolation can cause them to shrink. Economists should take note