In 1991, I started a business with Karl Case, an economics professor at Wellesley College, and Allan Weiss, a former student of mine at Yale. We called it Case Shiller Weiss, Inc., and it was devoted to an innovation we dreamed up. The idea was a new “repeat sale” home price index — which would track the changes in the value of the same houses over time.

At the time, this was an entirely new line of business. And, at first, that posed a problem: we were spectacularly unsuccessful in raising money. We talked to venture capitalists and their committees, to no avail. They just didn’t seem to get our business plan. We must have appeared odd to them — overly academic, perhaps. One remarked that we’d do better proposing a new shopping center.

But we went ahead with our idea anyway. At first, Allan worked without pay. A friend of Professor Case, Chuck Longfield, contributed some money. And in 1995, I took out a home equity line of credit on my house in New Haven so I could personally lend more money to help keep our business afloat. The experience was stressful, especially when adding it to the burdens of my main job, as a professor. I have much to thank my wife, Virginia, for her tolerance of my overwork and my worrying, and for allowing me to put our family savings at risk.

In the end, our business was successful, and I think a big part of it was that we relied on our own ideas and energy and, to a large extent, our own money. In 2002, we sold the business to Fiserv Inc., then licensed Standard & Poor’s to create what are now known as the S&P/Case-Shiller Home Price Indices. In 2006, the Chicago Mercantile Exchange began trading futures on 11 of our indexes. Fiserv sold the index business to CoreLogic early this year.

In short, our business made its mark without any help from the government.

This little real-life experiment convinces me that committees of experts, even at smart venture capital firms, will often not recognize real innovation. I think that America’s business success through the decades has occurred because we have so many people with specialized knowledge who are willing to put their money, time and resources on the line for ideas that can’t be proved to a committee.

THAT experience may also help explain why I think the new crowdfunding initiative, started by the Jobs Act that the president signed last year, is an exciting step forward. It’s all about finding and mobilizing people who really understand specific, hard-to-prove ideas for important investments.