دانلود رایگان مقاله الگوهای Coauthorship و subauthorship در اقتصاد مالی

Abstract

Acknowledgments are a special kind of intellectual partnership. Acknowledged scientists in published papers are called subauthors. We examine collaboration patterns between authors and subauthors in four finance journals from 1994 to 2013: the Journal of Finance, the Review of Financial Studies, the Journal of Financial Economics and the Journal of Financial and Quantitative Analysis. We employ social network analysis and discover that the majority of subauthors form a compact giant component with small average distances between the nodes. Moreover, the subauthorship network in finance has a non-overlapping structure, exhibiting low clustering coefficients and a plethora of cohesive groups of nodes.

4. Conclusion

We have presented the network structure of subauthorship in four finance journals: the Journal of Finance, the Review of Financial Studies, the Journal of Financial Economics and the Journal of Financial and Quantitative Analysis, from 1994 to 2013. We found that the number of subauthors increases in the 1994–2013 period. Moreover, the network's density and the number of MCGs increase over time (except for the Journal of Financial Economics). Our network also consists of a few components; within the components, the subauthors are connected with small average distances. The subauthors' network in finance is weakly connected, exhibiting a rather low clustering coefficient which tends to increase over the last two decades. Despite the fact that subauthorship patterns in finance are rather permeably structured, this network contains almost no isolated nodes. Furthermore, the network is plenty of relatively non-overlapping MCGs, which tend to increase across the sample period. We discovered that this network is split into relatively small groups of nodes which are connected with dense internal links. These groups are sparsely connected to each other. This implies that the network's information flow stays largely within the groups. Future research could explore the subauthors' social and educational characteristics such as their age, sex and the academic institution where they obtained their PhD. This will shed light on the social and academic identity of these indirect contributors to scientific innovation in financial economics.