Here is an interesting read on Investor Relations

http://www.instituteforpr.org/wp-content/uploads/2007_Laskin.pdf

These are a couple of paragraphs from the study

"As for the specific areas of the investor relations', the research in general confirmed
all four of these contributions with certain remarks. The value of a company's stock primarily
depends on the company's performance and its business model rather than on investor
relations activities. However, investor relations is often the channel through which investors
learn about the company's business model, its financial forecasts, and its management team.
Thus, investor relations enhances investors' ability to understand and evaluate the company.
In this sense, investor relations helps a share price to achieve a fair valuation and helps a
company to tell a story about its future.

Credibility becomes an important issue as any company's forecast is only as good as
the people who deliver the message. This is where the management and investor relations
track record comes into play – how truthful they were before, how much we can trust them
now. So as a result, in the grand scheme of events, the influence of investor relations on share
price is minimal in comparison with earnings growth, profitability, and sales. Yet, since
investors are often concerned not with past earnings but rather with future ones, the way the
company communicates that information through earnings releases, conference calls, and
road-shows might make or break a deal, and this gives investor relations a chance to
contribute to a company’s fair value."

Terry