Carlos realizes that if he studies an extra hour for his test, he will score five points higher. for each extra hour spent studying, he is getting one hour less of sleep. when deciding whether to spend an additional hour study or sleeping, carlos is engaged in what economic activity?
a) bartering
b) market transactions
c) marginal analysis
d) trade negotiations

True or flase? a. new technological developments can us adapt to depleting sources of natural resources. b. research and development funds from the government to private industry never pay off for the country as a whole; they only increase the profits of rich corporations. c. in order for fledgling industries in poor nations to thrive, they must receive protection from foreign trade. d. countries with few natural resources will always be poor. e. as long as real gdp (gross domestic product) grows at a slower rate than the population, per capita real gdp increases.