When Susan Athey, Economics of Technology Professor at the Stanford Graduate School of Business, looks at digital money, she sees a revolutionary technology that allows people or institutions to transfer funds instantly, securely and without a middleman. Digital money can potentially expand international commerce, support financial inclusion, and transform how we shop, save and do business in ways we probably cannot even yet fully understand. From programmable money to new forms of e-commerce, she explains five ways the new technology will change the world.