How Many Economists Does It Take to Change a Light Bulb?
"How many New Yorkers does it take to change a light bulb? Two - one to call the electrician and one to mix the martinis" or "How many therapists? Only one but the light bulb has to really want to change." I recently found another in an old notebook: "How many economists does it take to change a light bulb? None; the market will take care of it." More...