If Jayla's tax liability increases from $10,000 to $16,000 when her income increases from $30,000 to $40,000, her marginal tax rate is

Any action that gives rise to a demand for foreign currency is a

A) deficit item on the current, financial, or capital account. B) deficit item on the current account and a surplus item on the financial and capital accounts. C) surplus item on the current account and a deficit item on the capital and financial accounts. D) surplus item on the current, financial, or capital account.

A contestable market is

A. An imperfectly competitive situation that is subject to entry. B. An imperfectly competitive situation with high barriers to entry. C. A market with only one producer. D. A perfectly competitive market.