Goods known as substitutes increase the use of another good.

One of the reasons why we have several competing theories of international trade flows is difficulty economists encounter in devising and carrying out precise tests of trade theories

Indicate whether the statement is true or false

During most of the 1990s and 2000s, the trend in interest rates was:

A. just about constant. B. mildly upward. C. sharply downward. D. mildly downward.