Question 20 0/ 4 points People often argue that there is a "shortage" of childcare. Using the model of demand and supply, evaluate this argument as completely as you can. - No text entered ~ Question 21 0 l 2 points Given that rent controls can have a negative impact on low-income people, devise a housing strategy that would provide affordable houses for those whose incomes fall below the poverty line. What are likely ramifications for the rental housing market