Jill has income m and consumes good x and good y that have initial prices p_x and p_y. Suppose that both prices

Suppose that Eve spends all of her income on avocados and walnuts (she has just learned that it is the perfect diet for her brain). She can just afford 9 avocados and 10 packs of walnuts per week. She could also use her entire income to purchase 3 avocados and 12 packs of walnuts per week. The price of one avocado is CZK 20. How much is Eve's income per week? Please, insert numerical value only.

A consumer has rational and well-behaved preferences. The consumer buys good 1 and good 2 and his initial bundle is  . The price of   increases and the new bundle consumed is . Good 1 is a gross substitute of good 2. Suppose now that the consumer is compensated for the price change and his purchasing power is kept constant. 

Justin’s utility function is U(x, y) = min{x, y}. Justin has $150, and the price of x and the price of y are both $1. Because of problems in the local bureau, Justin’s boss is thinking of sending him to another town where the price of x is $1 and the price of y is $2 and the boss offers no raise in pay when moving. However, Justin does not want to move. The boss tells him that he would have to decrease Justin's wage if he didn't move. What is the maximal decrease in wage under which Justin will still not be willing to move? (Justin will not move if he is indifferent between moving and not moving.)

Jannet has quasilinear preferences and her inverse demand for x is p=24-4x. Currently, she buys 5 units of the good x. What consumer surplus does she derive from her consumption?

Suppose that a researcher computes consumer surplus using an area below the Walrasian demand because it is the only demand that is observable. The researcher analyzes the demand for the good x, and from the data, she observes that richer people buy less of the good x than poorer people. Then:

A consumer has rational, monotonic, and strictly convex preferences. The consumer buys good 1 and good 2. Suppose that the price of good 2 increases. If the consumer's purchasing power is kept constant, then:

Suppose that the average household of pensioners receives a monthly pension of CZK 16,000 per pensioner and spends CZK 12000 on food and CZK 4000 on clothing. The price of clothing increases by 5% and the price of food increases by 10%. If the pension is fully indexed using the Consumer Price Index computed for households of pensioners, what will be the value of the indexed pension?

Jessica spends her income on potatoes and beef. She buys 12 kilos of potatoes and 6 kilos of beef each month. The price of potatoes is 10 per kilo and the price of beef is 250 per kilo. Due to a cattle disease, the price of beef increases to 350 per kilo. Calculate Slutsky income compensation.

Please, insert a numerical value only!

Suppose that over time prices of ALL goods double. Which of the following statement is true?