Suppose the optimal amount of X is 100 units and that the market provides 123 units. This situation is descriptive of

If the current account balance shows a surplus, and the capital account also shows a surplus, then the official reserve transactions balance

A) must be positive. B) must be negative. C) must be zero. D) can either be positive, negative, or zero.

A consumer chooses an optimal consumption point where the

a. marginal rate of substitution equals the relative price ratio. b. slope of the indifference curve exceeds the slope of the budget constraint. c. ratios of all the marginal utilities are equal. d. All of the above are correct.