Suppose that a recent celebrity endorsement made more people prefer this brand of cell phones. now, more cell phones are demanded at each price level. as a result of the increase in demand, the equilibrium price and the equilibrium quantity increases, decreases

As a result of the increase in demand, the equilibrium price increases and the equilibrium quantity decreases.

Explanation:

Celebrity Endorsement is an easy and quick way to boost sales of a specific product. People tend to purchase that product. When people purchase that product, the demand of the product increases, so the prices also increase. As a result of the increased demand, the supply is decreased, thus decreases the quantity of the product.

the correct answer is economics is a game without winners or losers.

unlike sports or games economic is a game without losers or winner rather it is a game where everyone wins. parties of business doing businesses exchange money with each other and hence exchange is done on the basis of goods. one party takes the goods and other sales it so there is winner on both sides. each party values more highly the good it gets than the good it gives up. both sides exchange only because both intend to increase their value. so there is no concept of lose or win.

a.