There's been tons of work on this topic both in the academic and practitioner literatures. But I haven't seen much on similar relationships for universities. I'm sure that a lot's been done- I just haven't seen it.
There's a good illustration in the Boston Globe of directors at Suffolk University (actually, trustees, which serve a similar role for a university) with significant business ties to the school. It turns out they just awarded the University president a 2.8 million dollar pay package. Of course, there were "good reasons" for doing so. Here's the lede from the story:
Boston lobbyist Robert Crowe was key among the Suffolk University trustees who made David J. Sargent the highest paid university president in the nation in 2006, with a $2.8 million compensation package. Less than a year later, Sargent renewed a $10,000-a-month contract with Crowe's lobbying firm to represent Suffolk's interests in Washington.
This month, as controversy flares over Sargent's pay, the job of publicly defending it falls on George Regan, himself a new appointee to the Suffolk Board of Trustees as well as the beneficiary of a $366,000 annual contract with the university.
Read the whole thing here.Is this necessarily a bad thing? Not really - it could be perfectly innocent, and it's not surprising that trustees of a university might have significant business ties to the university. After all, they tend to be prominent alumni with a long history with the school. But, when you have those ties, a pay package like that is going to get far greater scrutiny than it would otherwise. Or as Ricky Ricardo would have said, "they got some 'splainin to do".
As an aside, if you want to see some excellent examples of affiliated directors in the corporate world (along with other examples of bad governance), there's no better place to go than Michelle Lederer's Footnoted.org. She's made a career out of scouring through company documents to find some truly outrageous examples of corporate mis-governance.
I think the president of Unknown University considered having some trustees with business ties to the school, but we didn't have enough money to pay the required graft.