• As Gas Costs Soar, Buyers Flock to Small Cars - New York Times
  High gas prices = greater demand for small cars. A perfect illustration of the concept of cross-price elasticity of demand. Hat tip to Greg Mankiw
  (tags: cross-price elasticity, determinants of demand, microeconomics)
• How do I hate thee, gas-tax holiday? | Free exchange | Economist.com
  Five reason Hillary’s gas tax holiday is a BAD idea… from “the Economist” which, mind you, is notoriously anti-tax. If these guys oppose the suspension of the gas tax, it really must be a bad idea!
  (tags: gas tax, “the Economist”, Clinton, politics)
• RealGM: Beyond The Arc - The Law of Diminishing Marginal Returns
  The law of diminishing returns is visible in the NBA… too many good players on one team and the “output” from additional stars diminishes. Interesting article. Thanks to student Kevin Chiu for the link!
  (tags: diminishing returns)

About the author: Jason Welker is a teacher at Zurich International School in Switzerland, where he teaches Advanced Placement and International Baccalaureate Economics. Jason was an international school student in Malaysia before studying economics at Seattle University then earning his Masters in Education. He calls Seattle and Northern Idaho home. In addition to maintaining an economics wiki and this blog for economics student and educators, Jason also gives presentations on using Web 2.0 tools in education at workshops and conferences around the world. His economics wiki won the 2007 "Best Educational Wiki" award from the "EduBlog Awards".

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