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AP Economics. Mr. Bernstein Module 8 : Price Controls: Ceilings and Floors October x, 2013. AP Economics Mr. Bernstein. Price Controls A legal restriction on how high or low a market price may go Enacted by governments in response to political pressures from buyers and sellers.
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AP Economics Mr. Bernstein Module 8: Price Controls: Ceilings and Floors October x, 2013
AP EconomicsMr. Bernstein Price Controls • A legal restriction on how high or low a market price may go • Enacted by governments in response to political pressures from buyers and sellers
AP EconomicsMr. Bernstein Price Ceilings • Examples • Resources during WWII • New York City apartments (rent control) • Food prices in Venezuela • Salary Caps in Major League Sports • Credit Card interest rate caps • Where would you like to see price ceilings?
AP EconomicsMr. Bernstein Modeling a $2 Price Ceiling on Tacos • Qd ~= 6 • Qs~= 4 • Shortage = 2 • Who benefits? • Notice the price ceiling is below equilibrium on a graph
AP EconomicsMr. Bernstein Inefficiencies of a $2 Price Ceiling on Tacos • Inefficient Allocation to Consumers • Some willing to pay $5 get none, some unwilling to pay $5 will be able to buy at $2 • Wasted Resources • Consumers spend time and other scarce resources chasing shortages (incurring opportunity costs) • Lower Quality Products • Black Markets
AP EconomicsMr. Bernstein Why do Price Ceilings Exist? • They do benefit some consumers! • Those with political clout gain • Once in place, there is uncertainty about removal effects • Government officials may not understand supply and demand effects
AP EconomicsMr. Bernstein Price Floors • Examples • Minimum Wage • Agricultural Products
AP EconomicsMr. Bernstein Modeling a Price Floor on Tacos • Excess Supply • Notice the price floor is above equilibrium price on a graph!
AP EconomicsMr. Bernstein Inefficiencies of a Price Floor • Quantity Demanded falls due to price increase • Quantity bought and sold falls, creating TU loss to society • Producers willing to sell at equilibrium price may not be the ones lucky enough to make sales • Inefficiently high quality products • Wasted Resources • Producers may begin adding extravagant ingredients not even desired by buyers in market in equilibrium • Illegal activity • ie working below minimum wage due to surplus labor supply • Encourages bribery and corruption of government officials
AP EconomicsMr. Bernstein Why do Price Floors Exist? • They do benefit some producers! • Those with political clout gain • Once in place, there is uncertainty about removal effects • Government officials may not understand supply and demand effects
AP EconomicsMr. Bernstein Defining Deadweight Loss “Losses associated with quantities of output that are greater than or less than the efficient level, as can result from market intervention such as taxes, or from externalities such as pollution.” Krugman
AP EconomicsMr. Bernstein Defining Deadweight Loss: Price Floors
AP EconomicsMr. Bernstein Defining Deadweight Loss: Price Ceilings