I found this paper interesting:

"A Bayesian Understanding of Information Uncertainty and the Cost of Capital"

Uncertainty is not always resolved by new or better information. Also contrary to intuition, the cost of capital implied by a conventional capital asset pricing model can increase as investors become more certain about future events.

Gary Rogan writes:

I only got as far as this premise in the abstract:

"The role of financial reporting should be understood not in terms of its effect on the cost of capital per se, but as aiding investors to assess the probability distributions of future cash flows more accurately, thereby leading on average to higher expected utility portfolios."

Can widely distributing financial information to investors increase the AVERAGE expected utility? If everyone is better informed, won't the positive effects average out to zero or close?

Rocky Humbert writes: 

I have not read this paper yet, however, the answer to Mr. Rogan's question is: No, this is not a zero sum game. Better information can generate net positive value when measured at a societal level. The core economic principle which explains the net positive is that better analysis/better information will result in better capital allocation. Better capital allocation should result in higher societal productivity and hence a higher potential growth rate. This is one of the economic underpinnings behind the SEC principle of full disclosure of all relevant and material facts.

Simple example: If I "invent" a perpetual motion machine and raise $10 Billion in capital to build a factory to produce my perpetual motion machines, then this capital will be re-directed from some other potentially more productive use. In this silly example, investors rely on my prospectus to invest and have bad information. If they read the prospectus carefully however, they will see a disclaimer that the physics behind my invention are nonsense and they are better off investing in a factory that creates widgets or drugs or whatever which actually work.





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