You decrease your product price by $10 in market A but leave it unchanged in market B. Sales in A rise from 840 units per week to 940 while sales in B also rise from 770 to 790. The difference-in-difference estimate of the effect of the price change is:

When the federal reserve buys and sells bonds to member banks, it is called a. monetary policy b. reserve ratio c. interest rate adjustment d. open market operations

You are head of the schwartz family endowment for the arts. you have decided to fund an arts school in the san francisco bay area in perpetuity. every 5 years, you will give the school $ 1 comma 000 comma 000. the first payment will occur 5 years from today. if the interest rate is 5.9 % per year, what is the present value of your gift?

Mcdonald's fast-food restaurants have a well-designed training program for all new employees. each new employee is supposed to learn how to perform standardized tasks required to maintain mcdonald's service quality. due to labor shortages in some areas, new employees begin work as soon as they are hired and do not receive any off-the-job training. this nonconformity to standards creates