As a percentage of GDP, imports are greater than exports for which of the following countries?

The evolution of the payments system from barter to precious metals, then to fiat money, then to checks can best be understood as a consequence of

A) government regulations designed to improve the efficiency of the payments system. B) government regulations designed to promote the safety of the payments system. C) innovations that reduced the costs of exchanging goods and services. D) competition among firms to make it easier for customers to purchase their products.

Suppose you are risk averse and you are deciding between two investments. One has a guaranteed return of 5% while the second has a 50% chance of a 10% return and a 50% chance of a 0% return. Which investment would you choose? Why?

What will be an ideal response?