Econ professor and blogger Tim Haab has posted a great story on market failure, efficiency and corrective taxes at his blog, Environmental Economics: I love when someone else does my work for me.
With appreciation, I re-post his blog here in its entirety. Tim’s “Questions to consider” are perfect for IB and AP Econ students to answer in their Market Failure unit. Read and answer Tim’s discussion questions in the comments:
Today’s Econ 101 topic–actually AED Economics 200 but same diff–the deadweight loss from taxes in otherwise well-functioning markets. In my neverending–futile?–attempt to stay current, I plan to use this example from today’s Wall Street Journal:
Senate leaders are considering new federal taxes on soda and other sugary drinks to help pay for an overhaul of the nation’s health-care system.
The taxes would pay for only a fraction of the cost to expand health-insurance coverage to all Americans and would face strong opposition from the beverage industry. They also could spark a backlash from consumers who would have to pay several cents more for a soft drink.
The Center for Science in the Public Interest, a Washington-based watchdog group that pressures food companies to make healthier products, plans to propose a federal excise tax on soda, certain fruit drinks, energy drinks, sports drinks and ready-to-drink teas. It would not include most diet beverages. Excise taxes are levied on goods and manufacturers typically pass them on to consumers.
…
The Congressional Budget Office, which is providing lawmakers with cost estimates for each potential change in the health overhaul, included the option in a broad report on health-system financing in December. The office estimated that adding a tax of three cents per 12-ounce serving to these types of sweetened drinks would generate $24 billion over the next four years. So far, lawmakers have not indicated how big a tax they are considering.
Proponents of the tax cite research showing that consuming sugar-sweetened drinks can lead to obesity, diabetes and other ailments. They say the tax would lower consumption, reduce health problems and save medical costs. At least a dozen states already have some type of taxes on sugary beverages, said Michael Jacobson, executive director of the Center for Science in the Public Interest.
Questions to consider:
- How do you reconcile the seemingly conflicting goals of reducing soda consumption and raising revenues to pay for health care?
- Which effect do you expect to dominate: reduction in quantity demanded due to higher prices or increased revenue from higher prices?
- Assuming the market for sodas (pop around here) is currently working efficiently, what effect do you expect a new tax to have on consumer well-being, producer well-being, government revenue and total social welfare?
- What role do the elasticity of demand and elasticity of supply play in your answers to 1,2 and 3?
