Reciprocity and impact in academic careers

The growing importance of citation-based bibliometric indicators in shaping the prospects of academic careers incentivizes scientists to boost the numbers of citations they receive. Whereas the exploitation of self-citations has been extensively documented, the impact of reciprocated citations has not yet been studied. We study reciprocity in a citation network of authors, and compare it with the average reciprocity computed in an ensemble of null network models. We show that obtaining citations through reciprocity correlates negatively with an impactful career in the long term. Nevertheless, at the aggregate level we show evidence of a steady increase in reciprocity over the years, largely fuelled by the citations reciprocated between coauthors. Our results characterize the structure of author networks in a time of increasing emphasis on citation-based indicators, and we discuss their implications towards a fairer assessment of academic impact

"With the Richness of Their Resources”: Honors Alumni Reflect on the Impact of a Service-Learning and Mentoring Program

Scholars have encouraged universities to more effectively engage with surrounding communities. One example of community engagement is the service-learning partnership between the Plan II Honors Program and the Knowledge is Power Program (KIPP) public charter school in Austin, through which college students enroll in a class to mentor local middle school students. In this article, we examine qualitative survey responses from Plan II alumni over a seven-year period reflecting on their experiences. Alumni described the service-learning experience as influencing their academic careers, postgraduate plans, and personal views. Findings imply that structured service-learning experiences can significantly influence the behaviors and life decisions of alumni both at the time of their experience and well beyond.Educatio

Learning for the Future: Changing the Culture of Math and Science Education to Ensure a Competitive Workforce

This report argues that improving the math and science skills of our nation's youth is an important step in ensuring and promoting innovation-led economic growth in the coming decades. The report calls for the implementation of a strategic plan that will increase student "demand" for and achievement in mathematics and science

Are There Fast Tracks in Economic Departments? Evidence from a Sample of Top Economists

In this paper, we analyze the timing of promotions in academic departments. Contrary to previous attempts in the empirical literature, we test alternative theories of fast tracks by adding a measure of performance in our analysis. We find that learning from past performance is an important factor to explain the time spent as assistant and associate professor. In addition, our analysis shows the existence of a handicapping policy: individuals who had a fast promotion in the past are less likely to be promoted quickly again. We also find that the handicap is relative, that it does not survive the whole career and that it is possible for these individuals to beat it if they achieve a given level of productivity. We interpret our find- ings as evidence that incentives and sorting matter in academia and that using relative handicaps can help to balance these two concerns. Finally, we look at the productivity pattern of individuals with different career profiles and find that fast tracks are always more productive than their pairs, even after the last promotion, what suggests an effective selection process.Fast track; Incentives; Sorting; Productivity; Economic departments

Network-based ranking in social systems: three challenges

Ranking algorithms are pervasive in our increasingly digitized societies, with important real-world applications including recommender systems, search engines, and influencer marketing practices. From a network science perspective, network-based ranking algorithms solve fundamental problems related to the identification of vital nodes for the stability and dynamics of a complex system. Despite the ubiquitous and successful applications of these algorithms, we argue that our understanding of their performance and their applications to real-world problems face three fundamental challenges: (i) Rankings might be biased by various factors; (2) their effectiveness might be limited to specific problems; and (3) agents' decisions driven by rankings might result in potentially vicious feedback mechanisms and unhealthy systemic consequences. Methods rooted in network science and agent-based modeling can help us to understand and overcome these challenges.Comment: Perspective article. 9 pages, 3 figure

The Effects of Interrupted Enrollment on Graduation from College: Racial, Income, and Ability Differences

We present a multiple spells-competing risks model of stopout, dropout, reenrollment, and graduation behavior. We find that students who experience an initial stopout are more likely to experience subsequent stopouts (occurrence dependence) and be less likely to graduate. We also find evidence of the impact of the length of an initial spell on the probability of subsequent events (lagged duration dependence). We simulate the impacts of race, family income, and high school performance on student behavior and show that there are often very large differences between unadjusted rates of student outcomes and adjusted rates. Differences in student performance often ascribed to race are shown to be the result of income, age at entry, and high school performance.

"You can see how things will end by the way they begin". The contribution of early mutual obligations for the development of the psychological contract

This study explores dynamic processes in the development of the psychological contract, focusing on the interaction of obligations related to the two parties (i.e., employees' perceptions of both their own and the organization's obligations fulfillment) on attitudinal outcomes (organizational commitment and turnover intention) during the initial stage of the employment relationship. In a twofold cross-sectional and two-wave study on newly hired correctional police officers, we examined: (a) whether perception of organizational obligations fulfillment moderates the relationship between employee obligations and their attitudes (Study 1, n.500); (b) the direct and moderated influence of perceived obligations at the entrance stage on those in the following months (Study 2, n.223). Results confirmed that, in the eyes of the newcomer, the obligations fulfillment of each of the two parties interact, having an additional effect beyond the main direct effects, in influencing both subsequent obligations perceptions and, through this, the outcome variables. Theoretical and practical implications of the findings are discussed

Understanding Small Business Networking and ICTs: Exploring Face-to-Face and ICT-related opportunity creation mediated by Social Capital in East of England Micro-businesses

Small businesses that are sole traders or micro-businesses—with few, if any employees notoriously suffer from a ‘liability of smallness’ (Aldrich and Auster 1986), including poor access to various resources. However, many authors argue that the inherent problems of smallness can be overcome with networking and good network connections. Resources, the opportunities to access them and other benefits apparent from networks and networking are readily apparent in the literature. However, few articles, if any, have examined small business networking from the perspective of this study—using in-depth qualitative methods, the theoretical construct of social capital and exploring the increasing role of Information and Communication Technologies (ICTs) in networks and networking—as part of understanding a variety of entrepreneurial opportunities. This article provides much needed empirical insights on how and if ICTs support opportunity creation amongst small businesses within a spatial and social network perspective. Its ‘media ecology’ approach does not over-prioritise the role of ICTs, but instead examines their interrelationships with face-to-face contact—putting technology in its ‘place’. The article focuses on the notion of ‘opportunity creation’ from networks, since this is the outcome critical for the small businesses themselves in order to generate economic benefits for their business. It seeks to provide a higher level, outcomebased framework that helps specify the various sorts of opportunities created by networks for small businesses, based on original ethnographic material and findings from a case study of East of England micro-businesses