When a nation exports a good, its consumer surplus ________, and its producer surplus ________

Fixed investment is

A) when a firm adds to its inventories of goods. B) when a firm accumulates profits. C) dissavings. D) an expenditure by firms on new machines that are expected to produce income in the future.

Firms maintain their completive edge by

a. Providing a good at lower costs than their rivals b. Providing a superior product at the same cost as your rival c. Being innovative d. All the above