Is concentration of university research associated with better research performance?

Henk F. Moed, Félix de Moya Anegón, Carmen López-Illescas, Martijn S. Visser. Is concentration of university research associated with better research performance?. J. Informetrics, 5(4):649-658, 2011. [doi]

@article{MoedALV11,
  title = {Is concentration of university research associated with better research performance?},
  author = {Henk F. Moed and Félix de Moya Anegón and Carmen López-Illescas and Martijn S. Visser},
  year = {2011},
  doi = {10.1016/j.joi.2011.06.003},
  url = {http://dx.doi.org/10.1016/j.joi.2011.06.003},
  researchr = {https://researchr.org/publication/MoedALV11},
  cites = {0},
  citedby = {0},
  journal = {J. Informetrics},
  volume = {5},
  number = {4},
  pages = {649-658},
}