People need medications, but the poor often cannot afford them. Governments may not provide subsidies for health care and medications. Meanwhile, pharmaceutical firms focus their R&D on compounds likely to provide the best returns. What is the proper role of the following groups in addressing these ­dilemmas: national governments, branded pharmaceutical firms, and generic manufacturers?

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In north korea, a farmer’s income is the same as a dentist’s income. in a country with a mixed or market economy, the difference between those two professions might be more than 5 times different. how can you explain the fact that individuals doing the same work in different countries do not earn comparable salaries?

Which of the following best explains why buying a house is more beneficial than renting? a. buying is a personal investment while renting involves giving money to the landlord. b. the monthly payments on a mortgage are generally lower than rent on an apartment. c. it's easier to sell a house than it is to get a landlord to break a rental agreement. d. housing prices can go up and down quickly in comparison to the level of rents.