If disposable income falls by $40 billion and consumption falls by $30 billion, then the slope of the consumption function is

Given that the firm only chooses to sell the no-name brand, how should it price its product?

a. Price low, sell to both users b. Price high, sell only to the professional chefs c. Price low, sell only to the professional chefs d. Price high, sell only to the home users

Bundle L contains 10 units of good X and 20 units of good Y. Bundle M contains 8 units of good X and 21 units of good Y. The consumer is indifferent between bundle L and bundle M. Assume that the consumer's preferences satisfy the four properties of indifference curves. Which of the following correctly expresses the marginal rate of substitution of good X for good Y between these two points?

a. The consumer will give up 1 unit of good X to gain 2 units of good Y. b. The consumer will give up 2 units of good X to gain 1 unit of good Y. c. The price of good X is twice as large as the price of good Y. d. The price of good X is half as large as the price of good Y.