Monday, March 23, 2009

Drug Bracelet


So do you think this will work? \http://www.thesoundadviceproject.com/

Wednesday, March 04, 2009

Optimism!

Here (in red) are the growth forecasts used to put out the new Obama administration budget, followed by the consensus forecast of a panel of "Blue Chip" private forecasters (in blue, naturally).


2009: -1.2% -1.9%


2010: +3.2% +2.1%


2011: +4.0% +2.9%


2012: +4.6% +2.9%


2013: +4.2% +2.8%


Accumulating the difference, you find that Team Obama projects about 6 percent higher GDP in 2013 than do private forecasters. Remember that using the rule of 70 highlights the size of this gap in forecasts.

Girl Your Marginal Benefits Outweigh Your Marginal Costs


This guys speaks the language of.... economics, not love. Oh well.


The danger of minimum payments


A nudge in the wrong direction


From The Economist print edition


Minimum-payment requirements may be counterproductive

EVEN the best-intentioned policies can fall prey to the quirks of human behaviour, as a new study of credit-card repayment finds. In order to stop borrowers from being socked by an accumulation of unpaid interest whenever they fail to pay their bill, there are laws requiring credit-card companies to specify a minimum payment in each statement. But these may do more harm than good, suggests Neil Stewart, a psychologist at Warwick University.

Mr Stewart was studying a phenomenon known as “anchoring”. Psychologists have found that being exposed to numbers, even irrelevant ones, can affect people’s decisions. For example, diners tend to spend more in a restaurant named “Café 97” than in one named “Café 17”. Since minimum payments on credit-card statements are usually small amounts, Mr Stewart wondered whether seeing an actual amount might make people pay less than they would otherwise have done. That is exactly what he found.

Mr Stewart presented 413 people with mock credit-card bills of £435.76 (about $650) that were identical—except that only half mentioned a minimum payment of £5.42. Participants were asked how much they would pay.

Among those inclined to pay the bill in full, the presence of the minimum payment hardly made any difference. However, those who wanted to pay just part of it handed over 43% less on average when presented with a minimum payment. In the real world, this would roughly double interest charges.

Economists will be interested in the results. Behavioural economists advocate “nudging” people in the right direction by subtly altering the choices that they are presented with. The insistence on minimum payments is a variation on this theme. Supposedly, those confronted by minimum-payment requirements should pay at least that much. In fact Mr Stewart’s work suggests that people who would have paid a lot, paid less. In economics, as in life, nudging needs to be done carefully.