Definition of a mixed economy: one where the economy is subject to both market and governmental forces. Mixed economies will share both market forces as well as planned economy forces. The governmental sector of United States is approximately 25% of GDP; this means 25% of our gross domestic product is under governmental control. But the government controls much more; they set rules and regulations regarding coal, medicine, and many other sectors of the economy. The classic laissez-faire economy could be descriptive of Britain in the late 1700s to early 1800s. This was a time when government controlled very little of the economy, and there were a few rules or regulations on industry. The classic governmental monopoly economy could be descriptive of the USSR from the period 1910 to 1970; a planned economy, where the government controls all aspects of capital and market conditions. United States shows heavy influence from governmental rules, regulations, and control over the economy (especially monetary policy), but markets are usually unfettered with regards to sales. This means we have a mixed economy.