That's a very valid question. There has to be a cost-benefit analysis to this.
The only data I've seen is as part of the Australian task force work, which has looked at the cost and benefits of disclosing the information. The Americans will tell you that they think it leads to so much innovation within the economy that there is a large benefit. In terms of each institution, that is why a good way to start is to basically look at the data sets that are being produced currently by institutions and see the possibility of disclosing that information.
The way the Americans did it was to have consultation with their stakeholders so that they identified the priority sets of data that stakeholders are interested in. You don't disclose everything; you disclose what's of value to your stakeholders. That way you have a better cost-benefit ratio, if you will.
But have I done any cost analysis? No, I have not.