Answer:
production that takes place in the underground economy
Step-by-step explanation:
GDP (gross domestic product) is the value of all final good, products and services in a country economy. It is used to determine the economic success of a country and its growth rate. The GDP includes production of goods that last less than a year, production of services, production of goods that last more than a year.
Activities in the underground economy are not included in the GDP. The underground economy are money gotten from illegal activities like prostitution, selling of hard drugs, trafficking and so on. They account for one-third of developing country economy and about 10% of the developed country economy. Since they are not reported, they are not taxed.