An economy is not really about aggregates such as gross domestic product or industrial production. Actual goods and services are produced and sold to particular consumers, businesses and government departments. A smoothly-functioning economy gets the right goods produced and sold at the right prices. A good economy also adjusts the composition of output to reflect changes in tastes, technology and materials costs. However, the more changes that need to be made, the harder it is to get all of the production and consumption decisions right. China has many changes to make. Their economic system still has too much cronyism and protection of state enterprises, which slow down adjustments.