NBER Paper: Motivation and Incentives in Education: Evidence from a Summer Reading Experiment

Abstract:

For whom and under what conditions do incentives work in education? In the context of a summer reading program called Project READS, we test whether responsiveness to incentives is positively or negatively related to the student’s baseline level of motivation to read. Elementary school students were mailed books weekly during the summer, mailed books and also offered an incentive to read, or assigned to a control group. We find that students who were more motivated to read at baseline were more responsive to incentives, suggesting that incentives may not effectively target the students whose behavior they are intended to change.

Source: National Bureau of Economic Research

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NBER Paper: Age and the Trying Out of New Ideas

Abstract:

Older scientists are often seen as less open to new ideas than younger scientists. We put this assertion to an empirical test. Using a measure of new ideas derived from the text of nearly all biomedical scientific articles published since 1946, we compare the tendency of younger and older researchers to try out new ideas in their work. We find that papers published in biomedicine by younger researchers are more likely to build on new ideas. Collaboration with a more experienced researcher matters as well. Papers with a young first author and a more experienced last author are more likely to try out newer ideas than papers published by other team configurations. Given the crucial role that the trying out of new ideas plays in the advancement of science, our results buttress the importance of funding scientific work by young researchers.

Source: National Bureau of Economic Research

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How Close is Asia to Already Being A Trade Bloc?

Abstract:

FTA bilateral and regional negotiations in Asia have developed quickly in the past decade moving Asia ever closer to an economic union. Unlike Europe with the EU and the 1997 treaty of Rome and the 1993 NAFTA in North American, Asian economic integration does not involve a comprehensive trade treaty, but an accelerating process of building one bilateral agreement on another. For countries in Asia there is negotiation of a China-Japan-Korea agreement, a China-India agreement, a Trans-Pacific Partnership (TPP) agreement, and a Regional Comprehensive Economic Partnership (RCEP). This paper uses a fifteen-country global general equilibrium model with trade costs to numerically calculate Debreu distance measures between the present situation and potential full Asia integration in the form of a trade bloc. Our results reveal that these large Asia economies can be close to full integration if they act timely in agreements through negotiation. All Asia countries will gain from Asia trade bloc arrangements except when the Asia FTA can only eliminate tariffs. These countries’ gain will increase as bilateral non-tariff elimination deepens. Larger countries will gain more than small countries. Asia FTA, Asia Union and RCEP will benefit member countries more than ASEAN+3. Global free trade will benefit all countries the most.

Source: NBER

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Gossip: Identifying Central Individuals in a Social Network

Abstract:
Can we identify the members of a community who are best- placed to diffuse information simply by asking a random sample of individuals? We show that boundedly-rational individuals can, simply by tracking sources of gossip, identify those who are most central in a network according to “diffusion centrality,” which nests other standard centrality measures. Testing this prediction with data from 35 Indian villages, we find that respondents accurately nominate those who are diffusion central (not just those with many friends). Moreover, these nominees are more central in the network than traditional village leaders and geographically central individuals.

Source: National Bureau of Economic Research

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Age and Scientific Genius

Abstract:
Great scientific output typically peaks in middle age. A classic literature has emphasized comparisons across fields in the age of peak performance. More recent work highlights large underlying variation in age and creativity patterns, where the average age of great scientific contributions has risen substantially since the early 20th Century and some scientists make pioneering contributions much earlier or later in their life-cycle than others. We review these literatures and show how the nexus between age and great scientific insight can inform the nature of creativity, the mechanisms of scientific progress, and the design of institutions that support scientists, while providing further insights about the implications of aging populations, education policies, and economic growth.

Source: National Bureau of Economic Research (NBER)

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What Are We Not Doing When We're Online

Abstract:

The Internet has radically transformed the way we live our lives. The net changes in consumer surplus and economic activity, however, are difficult to measure because some online activities, such as obtaining news, are new ways of doing old activities while new activities, like social media, have an opportunity cost in terms of activities crowded out. This paper uses data from the American Time Use Survey from 2003 – 2011 to estimate the crowdout effects of leisure time spent online. That data show that time spent online and the share of the population engaged in online activities has been increasing steadily. I find that, on the margin, each minute of online leisure time is correlated with 0.29 fewer minutes on all other types of leisure, with about half of that coming from time spent watching TV and video, 0.05 minutes from (offline) socializing, 0.04 minutes from relaxing and thinking, and the balance from time spent at parties, attending cultural events, and listening to the radio. Each minute of online leisure is also correlated with 0.27 fewer minutes working, 0.12 fewer minutes sleeping, 0.10 fewer minutes in travel time, 0.07 fewer minutes in household activities, and 0.06 fewer minutes in educational activities.

Source: National Bureau for Economic Research

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