Research on Institutional Economics, issued by SDUCER and edited by Professor Shaoan Huang, has passed her fifth birthday. The journal supports achievements connected with institutional economics, including theses, synopses, and commentary and translated works; we use universally permitted censorship method, anonymous censorship, and we advocate acute and formal study attitude, and free and equal academic exchange. Since the beginning of the journal, it has been recognized and supported by scholars due to its serious academic regulation, and research achievements with high quality, which once ranked in one of top ten books on sale of Xinhua Bookstore. Research of Institutional Economics will continue providing a free, equal and serious academic exchange stage. Welcome all scholars join us actively.