Without instant money and rewards, many students in these Chicago schools had put forth "low effort on the standardized tests that we study," the authors write. Why didn't the students care about good grades? A light thought experiment might help you understand.
Let's  imagine a man bursts through your nearest door in five seconds and  says: "Quick, do 20 push-ups and I'll send you a check for $20." Do you  wonder how long it takes for the money to arrive?
 
Classical economics would suggest you shouldn't. All things equal, $20 today is worth $20 in a week or so. But in fact, we're much more likely to do things -- large and small, easy and difficult -- when we can see the immediate benefits. If I hold a $20 bill in front your face, you're more likely to finish a push-up set than if I promise you'll get the money in a month.
Behavioral economists call this sort of thing "hyperbolic  discounting," an ungainly phrase that's more commonly known as the  problem of delayed gratification, or procrastination, or inattention.  The theory says that we don't value rewards properly. We excessively (or  hyperbolically) low-ball (or discount) the value of rewards in the distant future, which means we put too much weight on short-term satisfaction.
 
Now back to the tests. When an adult tells a child "stay in school," he can point to his big salary and home as evidence that education pays off. But education doesn't literally pay off for a very long time. Its rewards are delayed; therefore, from the perspective of a student, they are easily ignored. The economic rationale for paying students for good grades isn't (just) bribery. It's also about bringing the reward of good grades closer to the event of the test, when the student is more likely to act on it -- and less likely to "discount" it.
In this study,  economists offered students of different ages money or trophies just  before they took a test. Sometimes, the students got the reward first  with the possibility that it could be revoked for bad performance.  Sometimes, the students were only shown the reward after. So what did  the economists find? Four really cool things.
First, they  found that money works, and the amount of money really matters. Students  were reportedly willing to exert significantly more energy at  $80-an-hour, but not at $40-an-hour. (Authors: "As far as we know, ours  is the first study to demonstrate that  student responsiveness to incentives is sensitive to the size of the  reward."). Second, they learned that the rewards were most powerful when  they were framed as losses (i.e.: "Here is $20. If you fail, I'm taking  it away."). Third, they learned that "non-financial incentives," like  trophies, worked best with young people. Fourth, they learned that  rewards provided with a delay -- we'll get you that check in a month --  did very little to improve performance. The power of hyperbolic  discounting is strong with these ones.
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We don't always think of our attention as a budget, but it is. When we pay attention, we pay, literally. We allocate time out of a relatively finite portfolio of focus to concentrate on something.
The  trouble for many schools is that the incentive structure is set up to  ask teachers to focus more than their students on standardized tests.  These tests are super-high-stakes for instructors and principals, where  they can determine who keeps a job and where state resources are spent.  But they are relatively low-stakes for individual students in the  short-term, especially if those students aren't looking to go to college  and don't care very much about a weak grade. This paper's clever  conclusion is that we can manipulate lessons from economics and  psychology to trick/bribe/nudge students toward spending more from their  attention budget.
Blog : Everything For Money
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