According to Piketty, economic history is the story of a race between:

Which of the following is a macroeconomic factor that contributed to the financial crisis in 2007?

A) Global saving and investment imbalances B) Financial market innovation C) Deeper levels of integration across financial markets D) Challenges and failures in financial regulation

In a perfectly competitive market equilibrium,

a. each firm's marginal cost is equal to the market price b. each consumer's marginal utility is equal to the market price c. each firm's marginal cost is equal to each consumer's marginal utility d. price equals minimum marginal cost e. price equals minimum average total cost