Early Examples of Randomization in the Social Sciences
Randomization is one of the most persuasive techniques for determining cause and effect. Half of a certain group get a treatment; half don't. Compare. If the groups were truly chosen at random, and the treatment was truly the only difference between them, and the differences in outcomes are meaningful and the size of the samples are also large enough for drawing statistically meaningful conclusions, then the differences can tell you something about causes.
- 24/07/2018
- 2
The Modern Shape-Up Labor Market
It’s not unusual to hear predictions that in the future, we will all have opportunities to run our own companies, or that jobs will become a series of freelance contracts. Here’s a representative comment from business school professor Arun Sundararajan (“The Future of Work,” Finance & Development, June 2017, p. 7-11):
- 23/07/2018
- 4
What if Country Bonds Were Linked to GDP Growth?
What if countries could have some built-in flexibility in repaying their debts: specifically, what if the repayment of the debt was linked to whether the domestic economy was growing? Thus, the burden of debt payments would fall in a recession, which is when government sees tax revenues fall and social expenditures rise. Imagine, for example, how the the situation of Greece with government debt would have been different if the country's lousy economic performance had automatically restructured its debt burden in away that reduced current payments. Of course, the tradeoff is that when the economy is going well, debt payments are higher -- but presumably also easier to bear.
- 22/07/2018
- 4
Opioids: Brought to You by the Medical Care Industry
There's a lot of talk about the opioid crisis, but I'm not confident that most people have internalized just how awful it is. To set the stage, here are a couple of figures from the 2018 Economic Report of the President.
- 22/07/2018
- 5
Early Childhood Education Fails Another Randomized Trial
Public programs for pre-K education have a worthy goal: reducing the gaps in educational achievement that manifest themselves in early grades. I find myself rooting for such programs to succeed. But there are now two major randomized control trial studies looking at the the results of publicly provided pre-K programs, and neither one finds lasting success. Mark W. Lipsey, Dale C. Farran, and Kelley Durkin report the results of the most recent study in "Effects of the Tennessee Prekindergarten Program on children’s achievement and behavior through third grade" (Early Childhood Research Quarterly, 2018, online version April 21, 2018).
- 20/07/2018
- 6
BBN Times connects decision makers to you. Experts in their fields, worth listening to, are the ones who write our articles. We believe these are the real commentators of the future. We quickly and accurately deliver serious information around the world. BBN Times provides its readers human expertise to find trusted answers by providing a platform and a voice to anyone willing to know more about the latest trends. Stay tuned, the revolution has begun.