HARTFORD, Conn.--(BUSINESS WIRE)--Corbin Perception, a leading investor research and investor relations (IR) advisory firm, today released Earnings Calls as a Competitive Tool, a comprehensive thought leadership report linking investor and IR professional insights and best practices. The study, unveiled at the annual National Investor Relations Institute (NIRI) Conference held in Chicago, incorporates representative samples from small-, mid- and large-cap company investor relations programs and