Supply and demand are powerful forces in a free market. in four to five sentences, explain some of the factors that cause shifts in supply and demand and what the effects of these shifts are.

The shifts in supply and demand happens when the prices of goods and services decrease and increase. Supply is considered as competition. Having the same products as another ,changing the prices of the products will have you winning the competition. Demand shifts is when consumers/people purchase the goods that has changed prices.