The economic activities not a part of the official record and that take place outside official systems of regulation or remuneration make up the ________ sector of the economy and tend to be an important part of urban economic life around the world.
A) informal
B) underground
C) black market
D) market
Question 2
When calculating the rate of natural increase, one does NOT include
A) birth rates.
B) death rates.
C) migration.
D) both death rates and migration rates.
E) both death rates and birth rates.
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