In 2015, the average life expectancy at birth in the United Kingdom and other high-income countries was around ________ years

In a Cournot equilibrium, each firm chooses an output level which:

a. maximizes joint profits. b. maximizes the price received. c. maximizes profits given what the other firms produce. d. maximizes revenue given what the other firms produce.

An assumption that affects a model in important ways is

a. a key step b. a simplifying assumption c. a bad assumption, one that should be avoided in economic theory d. a critical assumption e. one that should be replaced with empirical evidence