Doctoral student of the Department of Tourism and Hospitality, Faculty of Economics, Urgench state university, Candidate of Economics, Associate Professor Hudayberganov Dilshod Tuhtabaevich, February 4, 2023, at a one-time scientific council on awarding scientific degrees under the number PhD.03/28.08.2020.I.55.03 At Urgench state university successfully defended his dissertation for the degree of Doctor of Science on the topic “Improving the methodology of increasing the efficiency of the market of goods and services” in the specialty 08.00.05 – “Economics of service sphere”.