Table 7.
Regression of article visibility on synthesis center affiliation, diversity measures, and team characteristics.
| Panel A. Number of Citations as of 2013 | |||||||
| Synthesis center paper (1 = yes) | 0.513*** | 0.511*** | 0.512*** | 0.509*** | 0.508*** | 0.504*** | 0.504*** |
| (95% confidence interval) | (0.47-0.56) | (.46-.56) | (.46-.55) | (.47-.56) | (.46-.55) | (.46-.55) | (.46-.54) |
| AuthorsT | 0.064*** | 0.065*** | 0.064*** | 0.064*** | 0.064*** | 0.065*** | 0.065*** |
| InstitutionsT | 0.014*** | 0.013*** | 0.014*** | 0.014*** | 0.013*** | 0.013*** | 0.013*** |
| References10 | 0.117*** | 0.117*** | 0.12*** | 0.116*** | 0.116*** | 0.116*** | 0.116*** |
| Variety | -0.025*** | ||||||
| Shannon Evenness | -0.246*** | ||||||
| Shannon | -0.10*** | ||||||
| Mean Disparity | -0.440*** | ||||||
| Median Disparity | -0.237*** | ||||||
| Non-weighted Disparity | -0.261*** | ||||||
| Top 10% Disparity | -0.286*** | ||||||
| Constant (alpha) | 3.517*** | 3.501*** | 3.490*** | 3.499*** | 3.404*** | 3.503*** | 3.557*** |
| N | 398,358 | 398,358 | 398,358 | 398,358 | 398,358 | 398,358 | 398,358 |
| R2 (pseudo for cites) | 0.15 | ||||||
| Panel B. Top 5% of Citation Distribution | |||||||
| Synthesis center paper (1 = yes ) | 0.977*** | 0.976*** | 0.973*** | 0.962*** | 0.962*** | 0.953*** | 0.955*** |
| (95% confidence interval) | (.72-1.1) | (.72-1.1) | (.71-1.1) | (.70-1.1) | (.70-1.1) | (.69-1.1) | (.69-1.1) |
| AuthorsT | 0.167*** | 0.169*** | 0.170*** | 0.167*** | 0.167*** | 0.168*** | 0.169*** |
| InstitutionsT | 0.016*** | 0.015*** | 0.013** | 0.016*** | 0.016*** | 0.014** | 0.014** |
| References10 | 0.265*** | 0.266*** | 0.264*** | 0.265*** | 0.264*** | 0.264*** | 0.264*** |
| Variety | -0.057*** | ||||||
| Shannon Evenness | -0.951*** | ||||||
| Shannon Entropy | -0.217*** | ||||||
| Mean Disparity | -1.221*** | ||||||
| Median Disparity | -0.712*** | ||||||
| Non-weighted Disparity | -0.543*** | ||||||
| Top 10% Disparity | -0.92*** | ||||||
| Constant (alpha) | -3.498*** | -3.312*** | -3.605*** | -3.470*** | -3.741*** | -3.643*** | -3.239*** |
| N | 398,358 | 398,358 | 398,358 | 398,358 | 398,358 | 398,358 | 398,358 |
| R2 (pseudo for cites) | 0.46 | 0.47 | 0.47 | 0.47 | 0.47 | 0.46 | 0.47 |
Note: All models also control for: year of publication; journal influence score, topic weight removed, number of tokens, and modal topic (dummy variable with 152 categories); 95% confidence intervals are in parentheses.