How Much Does Discrimination Hurt the Economy?

We milk our own social networks like we need a collaborator who knows how to do structural equation modelling. I only have my social network. How would you really escape the gravitational pull of nepotism? It makes me think of a paper by sophi calder wang called diversity and performance in entrapenureal teams. And we looked at this paper in a freconomics radio episode that was called, how much does discrimination hurt the economy?