This study compares the reasons why Small and Large companies are adopting electronic commerce(e-commerce) by these two groups of companies. Two surveys that were undertaken contemporaneously on the use of e-commerce by Small and Large companies in the Korea were used as the empirical basis for this study. Based on theories from the technological innovation literature, we developed an integrated model of e-commerce adoption in Korea. The research model hypothesized nine factors as significantly influencing e-commerce adoption in Small and Large companies: Customers, Suppliers, Partner Firms, Competitors, Relative Advantage, Cost, Compatibility, CEO's innovativeness, CEO's involvement.
