Robert Helsley is on CollEc

rank value
closeness 12387 4.81594
betweenness 11822 0.968484

co-authors

  1. William Strange [pst178]
  2. Yves Zenou [pze5]
  3. Jan Brueckner [pbr241]
  4. Dennis Capozza [pca514]
  5. Maurice Levi [ple633]