Eight states signed an agreement Wednesday that commits them to following a set of shared principles for growing the country’s outdoor recreation economy. “I don’t know of any other economy in the United States that is striving for synergy like this,” said Luis Benitez, director of Colorado’s Outdoor Recreation Industry Office. The two-page Confluence Accords, described as a treaty between states, was signed by representatives from Colorado, Montana, Utah, Oregon, Washington, Wyoming, North Carolina and Vermont as part of the Outdoor Retailer Summer Market show.