A buyer always wants to pay a price that is as as possible, but never than the buyer's willingness to pay.

low: higher

Explanation:

A buyer always wants to pay a price that is as low as possible, but never higher than the buyer's willingness to pay.

As a way to save costs, a buyer will always seek to pay the lowest price they can possibly pay for a good or service. This is why some buyers negotiate prices and seek trade discounts.

Buyers will however have in mind a maximum price that they would be willing to pay. This is called their willingness to pay and it is a threshold that they would not want to exceed. If a good's price is higher than their willingness to pay, they will not buy the good.

in terms of experimental research, mcdonald’s charging different prices in the two cities relates to

if it is for a job, then you should learn everything you can about the job, like what does it involve, what qualification is required and how you are the right person for that job. dress appropriately for the interview. get plenty of rest the night before. good luck!