(Luận văn) factors affecting loyalty of internet customers, evidence form vietnam

t to ng UNIVERSITY OF ECONOMICS HO CHI MINH CITY International School of Business hi ep w n lo ad ju y th yi pl n ua al Nguyen Thi Kim Quyen n va ll fu m oi FACTORS AFFECTING LOYALTY OF INTERNET CUSTOMERS: EVIDENCE FROM VIETNAM at nh z z k jm ht vb om l.c gm MASTER OF BUSINESS (Honours) n a Lu n va y te re th Ho Chi Minh City – Year 2012 t to ng UNIVERSITY OF ECONOMICS HO CHI MINH CITY International School of Business hi ep w n lo ad ju y th yi pl n ua al Nguyen Thi Kim Quyen n va fu ll FACTORS AFFECTING LOYALTY OF INTERNET CUSTOMERS: EVIDENCE FROM VIETNAM oi m at nh z z ID: 60340102 k jm ht vb om SUPERVISOR: DR DINH THAI HOANG l.c gm MASTER OF BUSINESS (Honours) n a Lu n va y te re th Ho Chi Minh City – Year 2012 Loyalty of Internet customers in Vietnam - t to ng ACKNOWLEDGEMENTS hi ep I would not have been able to complete my thesis without the advice, assistance, understanding and encouragement of a number of people I would like to gratefully w n and sincerely acknowledge their assistance and support First of all, the most lo ad important person I would like to thank is my supervisor, Dr Dinh Thai Hoang y th Thanks to his valuable advice and generous guidance throughout the process of ju completing this thesis Secondly, I would like to express my gratefulness to Dr yi pl Nguyen Dinh Tho for his kindness in supporting me to deal with analyzing data and ua al other issues of the thesis n Furthermore, I would like to thank all of the staff at International School of va n Business – University of Economics Ho Chi Minh City who are always enthusiastic fu ll and give me a lot of administrative support, assistance and understanding oi m Finally, I would like to give my gratefulness to all classmates who have been nh at sharing with me all their knowledge and experience as well as happiness and z difficulties during MBA course I would not complete my thesis without their z ht vb encouragement and support k jm In brief, it has been a long journey and I have grown in so many ways I would like complete this thesis om l.c gm to say “thank you” again for the involvement of everyone who has helped me to n a Lu n va y te re th Loyalty of Internet customers in Vietnam - t to ng ABSTRACT hi ep For Internet service providers (ISP), it is essential for them to understand the critical factors that influence customer loyalty These issues are critical to the long- w n term business success of any service provider Based on the literature reviewed in lo ad the thesis, this study empirically investigates the impact of factors on customer ju y th loyalty A quantitative method via questionnaire survey was used to obtain the views of yi pl approximately 300 Internet users in Ho Chi Minh city regarding their opinions and ua al perceptions about their current ISP and their intention to stay with them Multiple n linear regression analysis was used to investigate the relationship between customer va loyalty and influencing factors mentioned above n ll fu According to the findings of this research, in order to retain internet service oi m customers, providers need to take into consideration with factors such as network nh quality, price perception, perceived value and trust The results of this research are at important for ISP to enhance and improve their competitiveness, in other words, to z z become successful and have more loyal customers, which will ultimately result in k Keywords: customer retention, customer loyalty jm ht vb more profitability om l.c gm n a Lu n va y te re th Loyalty of Internet customers in Vietnam -1 t to ng TABLE OF CONTENTS hi ep ACKNOWLEDGEMENTS ABSTRACT w n CHAPTER 1: INTRODUCTION lo ad CHAPTER 1: INTRODUCTION Introduction 1.2 Research background ju 1.3 The research objectives 1.4 The research questions 1.5 The research model 1.6 The research methodology 1.7 The research structure 1.8 Conclusion y th 1.1 yi pl n ua al n va ll fu oi m CHAPTER 2: LITERATURE REVIEW 10 nh Introduction 10 2.2 Customer loyalty with internet service provider 10 at 2.1 z z ht vb 2.2.1 Network quality and customer loyalty 11 k jm 2.2.2 Price perception and customer loyalty .11 gm 2.2.3 Perceived value and customer loyalty 12 2.2.4 Trust and customer loyalty 13 l.c Controlling factors 13 2.4 The research model 13 2.5 Conclusion 15 om 2.3 n a Lu n va CHAPTER 3: RESEARCH METHODOLOGY 16 The research approach 16 3.3 Measurement 16 3.4 Sample and Data collection 19 - th 3.2 y Introduction 16 te re 3.1 Loyalty of Internet customers in Vietnam -2 t to ng hi ep 3.5 Data analysis 20 3.6 Conclusion 22 CHAPTER 4: DATA ANALYSIS AND RESULT 23 w Introduction 23 4.2 Preliminarily data analysis 23 n 4.1 lo ad 4.2.1 Cleaning and screening data 23 y th ju 4.2.2 Profile of respondents 23 yi Evaluating the measuring scales 25 4.4 Multiple Linear Regression analysis 32 pl 4.3 ua al n 4.4.1 Introduction .32 va 4.4.2 Computing variables 32 n fu ll 4.4.3 Assumption for Multiple Regression 32 m oi 4.4.4 Testing hypotheses .35 nh at 4.4.5 Controlling variables 37 Conclusion 39 z 4.5 z ht vb CHAPTER 5: CONCLUSION AND IMPLICATIONS 40 Introduction 40 1.2 Conclusion 40 1.3 Implications of the study 41 1.4 Limitations and suggestions for further research 42 k jm 1.1 om l.c gm REFERENCES 43 a Lu APPENDIX A: QUESTIONAIRE 47 n APPENDIX B: DATA ANALYSIS 53 n va y te re th - Loyalty of Internet customers in Vietnam -3 t to ng LIST OF FIGURES hi ep Figure 1: The theoretical model .14 Figure 2: The Histogram 33 w n lo Figure 3: The Nomal P-P Plot of Regression Standardized Residual 34 ad Figure 4: Scatterplot 34 ju y th yi pl n ua al n va ll fu oi m at nh z z k jm ht vb om l.c gm n a Lu n va y te re th - Loyalty of Internet customers in Vietnam -4 t to ng LIST OF TABLES hi ep Table 1: Research questions and hypotheses 15 Table 2: Measuring scale for variables 19 w n lo Table 3: The profile of respondents .25 ad Table 4: The reliability statistics 27 y th ju Table 5: KMO and Barlett’s test 29 yi Table 6a: The pattern matrix of EFA result 30 pl ua al Table 7b: The pattern matrix of EFA result 31 n Table 8: The Cronbach’s alpha result - retest .31 va n Table 9: Collinearity statistics .35 fu ll Table 10: Hypotheses testing .36 oi m Table 11: Regression with controlling variable of gender 37 nh at Table 12: Regression result with controlling variable of income level 38 z z Table 13: Regression result with controlling variable of using experience .38 k jm ht vb om l.c gm n a Lu n va y te re th - Loyalty of Internet customers in Vietnam -5 t to ng CHAPTER 1: INTRODUCTION hi ep 1.1 Introduction This research examines the driving forces of internet users’ loyalty and their w n intention to stay with their current provider among existing Internet Service lo ad Providers (ISP) in the context of Vietnam telecommunication sector This chapter y th will provide general information of research problem as well as research ju background, identify research objectives and research questions This chapter also yi briefly outlines research structure pl ua al 1.2 Research background n High-speed internet services are becoming more and more popular and the rapid va development of information technologies affects every aspect of our lives The n ll fu importance of information and communication technology is undeniable as it has oi m been applied in various fields for the purpose of service enhancement Although nh basic Internet services had existed in Vietnam since the early nineties, until 1997, at the first commercial Internet Service Provider (ISP) opened for business – Vietnam z z Data Communication Company (VDC) which belongs to Vietnam Posts & vb Telecommunication Groups (VNPT) Since then, Vietnam has been connected by ht jm two gateways: one in Hanoi connecting with Hong Kong and Australia, and the k other in Ho Chi Minh City, which connects with the United States by Sprint gm Internet usage remains low in comparison with that of other Asian nations, yet om l.c connectivity has increased rapidly over the past few years, thanks to an initiative by the Ministry of Post and Telecommunications According to the internet statistic a Lu report of VNIC (Vietnam Internet Center), up to June 2012, the number of internet n users in Vietnam is more than 31 million which is equivalent to the scale of 35.4 - th ISPs operating in Vietnam including VDC/VNPT, Viettel, FPT, Netnam, SPT, y especially in a developing country like Vietnam Until now, there are more than ten te re ISPs has also remarkably increased, which leads to severe competition among ISPs, n development, together with the development of internet services, the number of va percent users per capita Over more than fifteen years of formation and Loyalty of Internet customers in Vietnam -6 t to ng Hanoi Telecom, VTC, G-Tel, Vishiped and CMC TI in which three of the leading hi ep companies: VDC/VNPT, Viettel, FPT have obtained more than 85 percent of total Internet service market share in Vietnam As a result, ISPs must try their best to w develop their marketing strategy and improve their business performance to n lo increase their level of competitiveness From the above statistics, we can understand ad that the competition of Internet services in Vietnam is a severe war among three big y th ISPs: VDC/VNPT, Viettel and FPT Beside the diversification of services, ju yi enhancing the customer satisfaction and customer loyalty is considered to be the pl most effective way to compete in the market, especially in telecommunication al n ua industry which is on the verge of saturation point in some years’ time Customer va loyalty are believed to be the most effective weapons for providers to complete with n other rivals because these factors are the primary variables that impact customers’ fu ll intention to stay with their current providers (Khatibi, Ismail & Thyagarajan, 2002) m oi The providers which satisfy customers can expect higher market shares and greater at nh profitability and, in turn, encourage their customers to become loyal (Khatibi, Ismail & Thyagarajan, 2002) Aaker (1991) has discussed the role of loyalty in the z z brand equity process and has specifically noted that brand loyalty leads to certain vb jm ht marketing advantages such as reduced marketing costs, more new customers and greater trade leverage Expanding loyal customers can assist in generating a k gm business’s profitability because the cost of retaining existing customers is less than that of acquiring new ones (Reichheld, Teal, 1996) Therefore, understanding how l.c om and why a sense of loyalty develops in customers remains one of the crucial a Lu management issues of our day By assessing the Internet service users in Ho Chi Minh city, this research will give useful information of a range of factors impact on n y te re In other words, this research provides ISPs the direction and valuable n effecting customer loyalty, especially in telecommunication sector, will be derived va Vietnamese internet users’ perceptions of their current ISPs, from which factors - th understandings of what factors should be taken into account to become successful Loyalty of Internet customers in Vietnam - 44 t to ng Cronin, JJ & Taylor, SA (1992) Measuring Service Quality: A Re-examination and hi ep Extension Journal of Marketing 56(3), 55 – 68 Dick, AS & Basu, K (1994) Customer loyalty: Toward an intergrated conceptual w framework Academy of Marketing Science 22(2), 99- 113 n lo Khatibi, AA, Ismail, S & Thyagarajan (2002) What Drives Customer Loyalty: An ad analysis from the Telecommunication industry Journal of Targeting, y th Measurement and Analysis for marketin 11(1), 34 – 44 ju yi Kim, H & Yoon (2004) Determinants of Subscriber Churn and Customer Loyalty pl in the Korean Mobile Telephony Market Telecommunication Policy 28, 751 – n ua al 65 va Gotlieb, JB Grewall, D & Brown (1994) Consumer satisfaction and perceived n quality: Complementary or Divergent Constructs Journal of Applied ll fu Psychology 79(6), 875 – 85 m oi Gronroos (1990) Service management and marketing: Managing the moments of at nh truth in service competition Jossey – Bass Inc., San Francisco, CA Gronroos (1988) Sevice quality: The six criteria of good perceived service quality z z Review of Business 9(3), 10 – vb Analysis Prentice Hall, Upper Saddle River, N.J k jm ht Hair, JF, Anderson, RE, Tatham, RL & Black, WC (1998) Multivariate Data Management 8(1), – 19 l.c gm Hart, CW & Johnson, MD (1999) Growing the trust relationship Marketing om Hu, AW & Hwang (2006) Measuring the Effects of Consumer Switching Costs on American Academy of Business 9(1), 75 – 85 n a Lu Switching Intention in Taiwan Mobile Telecommunication Services Journal of y te re LeBlanc, G & Nguyen, N (1996) Cues used by customers evaluating corporate n Marketing Research 12(4), 484-7 va Jacoby (1975) A Brand Loyalty Concept: Comments on a Comment Journal of Journal of Service Industry Management, 7(2), 44 – 56 - th image in service firms: An empirical study in financial institutions International Loyalty of Internet customers in Vietnam - 45 t to ng Lovelock, CH (1983) Classifying services to gain strategic marketing insights hi ep Journal of Marketing 47(3), – 20 Mohd R.B Yaacob (2011) Determinants of Customer Satisfaction towards w Broadband Services in Malaysian 1(2), 123 – 134 n lo Monroe, KB (1991) Pricing – Making Profitable Decisions McGraw-Hill, New ad York y th Morgan, RM & Hunt, SD (1994) The commitment-trust theory of relationship ju yi marketing Journal of Marketing 58(3), 20 -38 pl Murphy, JA (2001) The lifebelt: The definition guide to managing customer al n ua retention Jonh Wiley & Sons Ltd., Chichester va Newman, WL (2006) Social Research Methods: Qualitative and Quantitative n Approaches Pearson Education, Inc, Boston, USD fu ll Pallant (2007) SPSS Survival Manual: A Step by Step Guide to Data Analysis m oi Using SPSS for Windows (Version 15) Allen & Unwin, Crows Nest, NSW at nh Ranaweera, C., & Neely, A (2003) Some moderating effects on the service quality-customer retention link Internatonal Journal of Operations and z z Production Management 230-248 vb European Journal of Marketing 30(2), 19 – 30 k jm ht Ravald, A & Gronroos, C (1996) The Value Concept and Relationship Marketing’, Press, Boston l.c gm Reichheld, FF & Teal, T (1996) The Loyalty Effect Havard Business School om Reynolds, FD, Darden, WR & Marktin, WS (1974 – 1975) Developing an image of Journal of Retailing 50(4), 73 – 84 n a Lu the store-loyal customer: A life-style analysis to probe a neglected market y th - te re Tabachnick, B.G & Fidell, L.S (1991) Using Multivariate Statistics 3ed, NY: HarperCollin n John Wiley & Sons, Inc, Chichester va Sekaran, U (2000) Research Methods for Business: A skill building approach Loyalty of Internet customers in Vietnam - 46 t to ng Ticehurst, GW & Veal, AJ (2000) Business Research Methods: A Managerial hi ep Approach Pearson Education Pty Limited, Frenchs Forest, NSW Wang, Y Lo, H & Yang, Y (2004) An Integrated Framework for Service Quality, w Customer Value, Satisfaction: Evidence from China’s Telecommunication n lo Industry Information Systems Frontiers 6(4), 325-40 ad Woo, K.S & Fock, H.K.Y (1999) Customer satisfaction in the Hong Kong mobile y th phone industry Journal of Service Industry 19(3), 162 – 74 ju yi Zikmund, WG (2000) Business Research Methods Dryden Press, Fort Worth, TX pl n ua al n va ll fu oi m at nh z z k jm ht vb om l.c gm n a Lu n va y te re th - Loyalty of Internet customers in Vietnam - 47 t to ng hi APPENDIX A: QUESTIONAIRE ep QUESTIONAIRE w n Dear respondents, lo ad I am a student of the master program of International School of Business - y th University of Economics Ho Chi Minh city I have been doing a research to identify factors ju whose impact on customer loyalty in telecommunication industry Please kindly share your yi valuable ideas about the issues in this questionnaire All your ideas shall strongly pl al contribute to our research n ua Section 1: Please select the appropriate answer for each question in this section:  Viettel n  VNPT va Who is your current Internet Service Provider? (Please choose only one answer – X)  FPT  Others (Please specify):…………… fu ll How long have you been with your ISP?  to years  Others: ………… oi  to years m  50 What is your job?  Students -  36 -50 ju -  25-35 y th  < 25 fu ll ISP? Please share with us your kind ideas m oi ………………………………………………………………………………………… nh ………………………………………………………………………………………… at ………………………………………………………………………………………… z z ………………………………………………………………………………………… jm ht vb ………………………………………………………………………………………… k Thank you so much for your contribution! om l.c gm n a Lu n va y te re th - Loyalty of Internet customers in Vietnam - 50 t to ng PHIẾU KHẢO SÁT hi ep Kính chào anh/chị, Tơi Nguyễn Thị Kim Quyên – học viên cao học chương trình thạc sĩ Viện Đào w Tạo Quốc Tế (ISB) – Trường Đại Học Kinh Tế Tp.HCM Tôi thực đề tài nghiên n lo cứu yếu tố tác động đến trung thành khách hàng với nhà cung cấp dịch ad vụ Internet thị trường thành phố Hồ Chí Minh Rất mong anh/chị dành thời gian thực y th bảng khảo sát bên Phần trả lời anh/chị giữ bí mật, có thơng ju yi tin tổng hợp báo cáo công bố pl Nếu anh/chị quan tâm đến đề tài, báo cáo sau hoàn thành gởi đến al anh/chị để tham khảo Mọi đóng góp cho đề tài vui lịng gửi địa chỉ: ua n kimquyennt@gmail.com va Chân thành cảm ơn anh/chị n ll fu Phần 1: Anh/ chị vui lịng chọn câu trả lời thích hợp cho câu hỏi sau:  Viettel  FPT  Khác:……………… oi  VNPT m Anh/chị sử dụng dịch vụ Internet nhà cung cấp nào? (X) nh Anh/chị sử dụng dịch vụ Internet nhà cung cấp bao lâu?  Từ đến năm  Hơn năm z  Từ đến năm at  Ít năm z Phần 2: Anh/chị vui lịng đánh giá mức độ đồng ý với phát biểu vb Hồn tồn khơng đồng ý jm ht Anh/ chị khoanh tròn vào mức độ đánh giá theo qui ước sau: Không đồng ý Hơi không đồng ý k 5 6 7 6 7 th - y 4 te re PP7 3 n PP6 2 va PP5 1 n NQ4 Thời gian kết nối dịch vụ đáng tin cậy Tơi kết nối mạng Internet nhanh vào lúc Quan niệm giá (Price perception) Giá dịch vụ sử dụng phù hợp Giá dịch vụ nhà cung cấp X rẻ so với nhà cung cấp khác Dịch vụ nhà cung cấp X tương xứng với Đánh giá bạn a Lu NQ3 Hoàn toàn đồng ý om NQ1 NQ2 Ý kiến Chất lượng mạng (Network quality) Tốc độ truyền tải liệu nhanh Tính hiệu đường truyền ln ổn định Đồng ý l.c Mục Hơi đồng ý gm Trung lập (khơng có ý kiến) Loyalty of Internet customers in Vietnam - 51 t to ng giá So với nhà cung cấp khác, dịch vụ nhà cung cấp X tương xứng với giá Tôi sẵn sàng trả nhiều tiền cho chất lượng hi PP8 ep PP9 w dịch vụ tốt n lo ad Giá trị cảm nhận (Perceived value) Nhân viên chăm sóc khách hàng ln có hỗ trợ cần thiết cho khách hàng Nhà cung cấp X xử lý, khắc phục cố dịch vụ cách nhanh chóng Nhà cung cấp X ln thơng báo thơng tin cần thiết để tơi sử dụng dịch vụ cách tiện lợi Tôi cảm thấy tiện lợi ln nhận hỗ trợ cần thiết nhà cung cấp X Nhìn chung, dịch vụ nhà cung cấp X tương xứng với giá cà , thời gian nổ lực khác Lịng tin (Trust) Tơi tin nhà cung cấp X ln sẵn sàng sẵn lịng hỗ trợ khách hàng Tôi tin nhà cung cấp dịch vụ thực cam kết với khách hàng Tơi tin nhà cung cấp có đủ khả kiến thức để thực nghĩa vụ với khách hàng Tôi tin nhà cung cấp ln đặt lợi ích khách hàng lên hàng đầu Lịng trung thành (Customer loyalty) Tơi giới thiệu với người khác nhà cung PV10 7 7 7 7 7 7 ju y th PV11 pl n ua al PV13 yi PV12 n va PV14 ll fu TT15 oi m TT16 z z vb TT18 at nh TT17 k jm ht 4 om cấp X nhà cung cấp dịch vụ Internet gm CL19 5 7 tốt l.c Tôi tiếp tục sử dụng dịch vụ nhà cung CL20 cấp n va y te re CL23 Tôi sẵn sàng mua dịch vụ khác cung cấp nhà cung cấp Tơi khuyến khích người thân bạn bè sử dụng dịch vụ nhà cung cấp n CL22 sử dụng dịch vụ Internet a Lu Nhà cung cấp X lựa chọn CL21 th - Loyalty of Internet customers in Vietnam - 52 t to ng Phần 3: Anh/chị vui lòng cung cấp số thông tin cá nhân cách chọn câu trả hi lời thích hợp Tơi cam đoan nội dung bảo mật sử dụng ep cho mục đích nghiên cứu w  Nam  Nữ n - Giới tính anh/chị: - Anh/ chị thuộc nhóm tuổi nhóm đây? lo  25-35 ad  < 25 ju  Sinh viên  Nhân viên  Chủ doanh nghiệp Thu nhập trung bình tháng (VND) anh/chị bao nhiêu? pl  Từ đến 10 triệu ua al  Ít triệu  Từ 10 đến 15 triệu  Hơn 15 triệu n Ngoài yếu tố đề cập đây, anh/chị nghĩ yếu tố ảnh hưởng đến va -  Nghề tự khác: ……… yi -  >50 Nghề nghiệp anh/chị gì? y th -  36 -50 n trung thành anh/chị với nhà cung cấp dịch vụ Internet? Vui lòng chia sẻ với fu ll ý kiến quý báu anh/chị m oi ………………………………………………………………………………………… nh ………………………………………………………………………………………… at ………………………………………………………………………………………… z z ………………………………………………………………………………………… vb ………………………………………………………………………………………… k jm ht Cám ơn anh/chị nhiều! om l.c gm n a Lu n va y te re th - Loyalty of Internet customers in Vietnam - 53 t to ng hi APPENDIX B: DATA ANALYSIS ep I EFA w n Total Variance Explained lo Initial Eigenvalues ad y th Factor Rotation Sums of Squared Loadingsa Extraction Sums of Squared Loadings % of Cumulative Variance % 13.033 56.667 56.667 1.426 6.199 62.866 1.021 4.437 67.304 834 3.627 70.931 740 3.220 74.150 662 2.879 77.029 618 2.689 79.717 551 2.394 82.111 497 2.159 84.271 10 439 1.909 86.179 11 366 1.591 87.770 12 343 1.491 89.261 13 331 1.438 90.699 14 312 1.355 92.054 15 293 1.275 93.329 16 269 1.168 94.497 17 263 1.144 95.641 18 229 996 96.637 19 193 839 97.476 20 189 820 98.297 21 167 725 99.022 22 141 615 99.637 23 084 363 100.000 Extraction Method: Principal Axis Factoring ju Total yi pl n ua al 12.727 1.077 640 516 426 Total 9.269 10.118 10.665 10.284 9.884 n va % of Cumulative Variance % 55.336 55.336 4.684 60.019 2.781 62.800 2.241 65.042 1.854 66.896 Total ll fu oi m at nh z z k jm ht vb om l.c gm n a Lu n va y te re th - Loyalty of Internet customers in Vietnam - 54 t to ng EFA AFTER DELETING ITEMS hi ep Total Variance Explained Initial Eigenvalues Extraction Sums of Squared Loadings Factor w n lo ad Total % of Variance Cumulative % Total % of Variance Cumulative % 11.224 56.118 56.118 10.925 54.625 54.625 1.308 6.542 62.660 974 4.872 59.497 1.003 5.017 67.677 627 3.137 62.634 813 4.067 71.744 501 2.505 65.139 700 3.500 75.244 448 2.239 67.378 600 2.998 78.242 594 2.968 81.210 518 2.588 83.799 433 2.163 85.962 10 380 1.901 87.863 11 359 1.796 89.660 12 320 1.602 91.261 13 311 1.555 92.816 14 278 1.388 94.204 15 272 1.361 95.565 16 251 1.255 96.820 17 200 1.000 97.820 18 181 907 98.727 19 168 838 99.565 20 087 435 100.000 Extraction Method: Principal Axis Factoring ju y th yi pl n ua al Rotation Sums of Squared Loadingsa Total 8.230 9.561 8.689 8.241 7.721 n va ll fu oi m at nh z z k jm ht vb om l.c gm n a Lu n va y te re th - Loyalty of Internet customers in Vietnam - 55 t to ng II REGRESSION hi ep R Model w 778 n R Square Adjusted R Square 605 600 a Std Error of Change Statistics the Estimate R Square Change F Change 81508 605 df1 107.710 lo ad y th ju Model Unstandardized Standardized Coefficients Coefficients Sig -1.476 141 yi t pl Std Error 234 Beta 224 071 203 3.162 002 072 309 5.211 000 067 139 2.363 019 225 3.433 001 Networkquality 376 n Priceperception va n ua al (Constant) B -.345 255 oi Trust m 159 ll fu Perceivedvalue 074 at nh z Collinearity Statistics Tolerance VIF k jm Networkquality 693 185 119 341 2.931 Priceperception 706 297 195 399 2.507 Perceivedvalue 643 140 089 405 Trust 697 201 129 327 om l.c gm Part ht (Constant) vb Correlations Zero-order Partial z Model 2.468 a Lu 3.058 n n va y te re th - Loyalty of Internet customers in Vietnam - 56 t to ng REGRESSION WITH CONTROLLING VARIABLE OF GENDER hi ep Model w R 784 R Square Adjusted R Square 615 608 a Change Statistics Std Error of the Estimate R Square Change F Change 80619 615 df1 89.526 n lo ad y th Unstandardized Coefficients B Std Error ju Model yi pl (Constant) al t Sig -2.122 035 -.507 239 225 070 203 3.202 002 311 5.305 000 143 2.457 015 074 220 3.398 001 100 2.689 008 n ua Networkquality Standardized Coefficients Beta va 378 071 Perceivedvalue 164 067 Trust 250 Gender 098 n Priceperception ll fu oi m at nh 036 z z Collinearity Statistics Tolerance VIF ht Correlations Zero-order Partial vb Model Part jm (Constant) k gm 693 188 119 341 2.931 Priceperception 706 302 197 399 2.508 Perceivedvalue 643 145 091 405 Trust 697 199 126 327 3.060 Gender 088 159 100 999 1.001 om l.c Networkquality 2.470 n a Lu n va y te re th - Loyalty of Internet customers in Vietnam - 57 t to ng REGRESSION WITH CONTROLLING VARIABLE OF USING EXPERIENCE hi ep Model w n R R Square Adjusted R Square 780a 608 601 Std Error of the Estimate 81355 Change Statistics R Square F Change Change 608 df1 86.905 lo ad y th ju Unstandardized Coefficients yi Model pl Sig -.870 385 Std Error 250 Beta 222 071 201 3.138 002 072 308 5.207 000 067 141 2.396 017 213 3.221 001 -.055 -1.435 152 va 375 n Priceperception Trust 241 Shortexp -.146 oi m 161 ll Perceivedvalue fu t B -.217 n Networkquality ua al (Constant) Standardized Coefficients 075 at nh 102 z z Collinearity Statistics jm ht Correlations vb Model Partial Part Tolerance VIF Networkquality 693 184 117 Priceperception 706 297 195 399 Perceivedvalue 643 142 090 405 2.469 Trust 697 189 121 321 3.112 Shortexp -.222 -.085 -.054 943 1.060 k Zero-order gm (Constant) 341 2.507 om l.c 2.933 n a Lu n va y te re th - Loyalty of Internet customers in Vietnam - 58 t to ng REGRESSION WITH CONTROLING VARIABLE OF INCOME hi ep Model Adjusted R R Square Square R w n 778a 606 Change Statistics R Square F Change Change Std Error of the Estimate 599 81743 606 df1 85.747 lo ad y th ju yi Model Standardized Coefficients Unstandardized Coefficients Std Error -.387 244 pl B 224 n va Networkquality n ua al (Constant) Sig -1.587 114 071 203 3.146 002 072 309 5.194 000 068 142 2.395 017 223 3.395 001 023 622 535 376 Perceivedvalue 162 Trust 253 075 Lowinco 063 101 ll fu Priceperception t Beta oi m at nh z z Collinearity Statistics k jm ht vb Correlations Model Partial Part Networkquality 693 185 118 341 Priceperception 706 297 195 399 2.507 Perceivedvalue 643 142 090 403 2.482 Trust 697 199 128 326 3.064 Lowinco 012 037 023 994 1.006 (Constant) Tolerance VIF 2.932 n a Lu om l.c gm Zero-order n va y te re th -