When every good or service is produced up to the point where the last unit provides a marginal benefit to society equal to the marginal cost of producing it, ________ occurs

If a lower exchange rate spurs exports then why wouldn't it be a good idea of policymakers to intervene to push the exchange rate as low as they can?

What will be an ideal response?

Compared to the 19th century, the population of the 20th century

(a) was largely urbanized. (b) was 3.7 times larger in number. (c) experienced a 63 percent increase in life expectancy at birth. (d) can be described by all of the above.