Uber and lyft customers often complain about the practice of ""surge"" or ""prime-time"" pricing used by these companies during periods of peak demand. this is an example of a pricing policy.

The correct word for the blank space is:  dynamic.

Explanation:

Dynamic pricing policies are based on certain time frames in which the demand for a service is requested. According to those time frames, the time could be cheaper or more expensive. Businesses are said to establish flexible prices under this scenario.

answer: in the short-run firms will respond by raising the price of turkey.

explanation: initially the long-run equilibrium is at a price of $5 per pound of turkey and a quantity of 50 million pounds per year. now, when webmd claims that a protein found in turkey will increase your expected lifespan by 4 years. the consumers demand for turkey will increase at every price shifting the demand curve to the right from d1 to d2. while, there will be no change in the supply curve in the short-run as it is not possible for producers to adjust supply so quickly. as a result the new equilibrium will occur at a higher price and a higher quantity of turkey.

thus, in the short run firms will respond by increasing the price of turkey, selling more quantity at a higher price and earning economic profits.