Double Stack and Consumer Surplus
Mankiw suggests that this intelligent Wendy's ad illustrates well the economic concept of consumer surplus. I concur, and would add that it also illustrates concepts such as the costs of time and decision making.
Magnus: China Must Reform or Bust - China's debt markets are looking more and more like the West, circa 2007. And it's not clear the government can intervene as successfully.
1 hour ago