0 Chapter X E-Commerce Contribution to Economic Growth: The Case of Thailand Ing-wei Huang Assumption University, Thailand Songsak Vanichviroon Assumption University, Thailand Copyright © 2008, IGI Global, distributing in print or electronic forms without written permission of IGI Global is prohibited. IntrodUctIon Today the trend of ICT development is gaining larger infuence over countries’ development and growth. It would not be surprising to see the elements that evolved from the developments of ICT (such as e-commerce, e-marketing, e-busi- ness, and e-learning) have increasingly provided support toward enhancing countries’ growth and development, especially in highly sophisticated abStract As the trend of ICT development is gaining larger infuence over countries’ development and growth, e-commerce plays an important role in enhancing the growth of several developed and developing econo- mies over the 21 st century. This chapter aims to build the analytical base to support the importance of the development of e-commerce by investigating the role and contribution of e-commerce to economic growth and development. The chapter frst investigates past contributions of e-commerce to economic growth in developed countries. Second, past research fndings and frameworks are utilized to investi- gate the contribution of e-commerce toward economic growth, focusing on the case of e-commerce in Thailand. The study found that e-commerce plays an important role in enhancing the economic growth of Thailand. Two important fndings supported the growth of e-commerce. First is the increase in sales generated by the use of e-commerce. Second, e-commerce induces the productivity development of frms through higher competition and innovation.