Delta Regional Authority Invests in Eastern Arkansas by Arkansas Business Staff Posted 12/18/2013 02:41 pm Updated 5 years ago The Delta Regional Authority plans to invest in a sustainable agriculture food system in the Arkansas Delta. Want the Full Article? Get Unlimited Archive Access for $19.95 per Year Readers must pay to access articles older than 15 days. Articles newer than 15 days are not included in this offer. Purchase Now Already have archive access? Login to view this article.