In this scenario, the expected increase in population by 25% due to relaxed immigration laws would lead to an increase in demand for goods and services, as the new immigrants will likely purchase similar amounts of goods and services as the current population.
Since demand is influenced by the number of consumers in the market, an increase in population will result in a rightward shift of the demand curve for all goods and services.
Therefore, the correct response is:
shift the demand curves for all goods and services to the right.