British Journal of Marketing Studies Vol.4, No.1, pp.32-42, February 2016 ___Published by European Centre for Research Training and Development UK (www.eajournals.org) 32 ISSN 2055-0219(Print), ISSN 2055-0227(online) FACTORS AFFECTING COMPETITIVENESS OF VIETNAMESE ONLINE SALES WEBSITES IN INTEGRATING TPP: A STUDY IN VIETNAM Tran Phi Hoang 1 , Bui Quoc Trong 2 , Nguyen Thai Binh 3 and Huynh Kim Quy 4 1 Industrial University of Ho Chi Minh City, Viet Nam 2 Rubber Industrial College, Binh Phuoc, Viet Nam 3 Industrial University of Ho Chi Minh City, Viet Nam 4 Saigon Technology University, Ho Chi Minh City, Viet Nam ABSTRACT: This study is to analyze the factors affecting competitiveness of Vietnamese online sales websites in integrating TPP (Trans - Pacific Partnership). Qualitative and quantitative research methods were used to carry on 800 online customers in Ho Chi Minh City, Danang City and Hanoi City. The study results show that the competition volume of Vietnamese online websites affected by 05 factors as follows: (1) The level of competition, Suppliers, The risk of substitution, Buyer Power, Entry Barrier. Based on the research results, measures are proposed to improve competitiveness for Vietnamese online sales websites in the future. After Analyzing the data, the main objectives of this study were to: First, identify the factors affecting competitiveness of Vietnamese online sales website; Second, determine the priority order of the impact factors affecting competitiveness of Vietnamese online sales websites; Third, propose solutions to enhance competitiveness of Vietnamese online sales websites in integrating TPP. KEYWORDS: Competitiveness, Vietnam, Online Website And Vietnam's Retail Websites INTRODUCTION According to Google and many online sales business groups, Vietnamese e-commerce market is potential because "the technology economy is developing" and Vietnamese among countries using internet highly that increases in the future. According to the monthly Wearesocial statistics in January, 2015 in Vietnam more than 39.8 million people used the internet accounted for over 40% of the national population and more than 90% of internet users operate search engines like Google. Every day more than 30 million people in Vietnam use the search engine to find information, products and services they need. According to the statistical report of Vietnamese General Statistics Office and Nielsen (2015), Vietnamese retail market has been one of the most developing markets recently, especially in the Fast Moving Consumer Goods sector (FMCG) and smartphones. E- Commerce Report in 2015 of Vietnamese Department of E-Commerce and Information Technology forecasted Vietnamese e-commerce market in 2016 would reach up to 6.9 billion of revenue (usd). While many great online sales business groups jump into Vietnamese market and are taking strong and sustainable developments, many Vietnamese online sales businesses have faced many difficulties, even many websites closed in series. In 2013 and 2014, the “giant” in Vietnamese online sales sector VNG closed Zing Deal web sales, discontinued operating 123.vn web sales, and finally sold 123.vn for Sendo.vn, the electronic commerce broken up and payment gateway 123Pay retained. Many companies have online sales websites such as 24h Advertising Online Corporation and VCCorp have begun internal