The purpose of this research was to examine consumers from distinct cultural groups and examine similarities and differences in their green purchase behaviors. The sample consisted of consumers from U.S.A. and South Korea and the theory of planned behavior was used as a theoretical framework to test the influence of diverse constructs on consumers’ purchase intentions toward organic cotton apparel.
A total of 334 participants (164 for U.S.A. sample and 170 for South Korea sample) were recruited to examine purchase behaviors toward organic cotton apparel. Structural equation modeling (SEM) was used to test the relationship between the TPB constructs and compare the results between the two country groups. AMOS 24 and SPSS 24 were used to analyze the data.
For both countries, perceived behavioral control (PBC) and descriptive norms were strong predictors of purchase intentions and injunctive norms strongly influenced attitude formation. However, the two groups showed different results regarding attitude-purchase intention, descriptive norms-attitude, and injunctive norms-purchase intentions relationship. For example, while attitude was the strongest predictor of purchase intention in the U.S.A. group, it had an insignificant effect in South Korea group. For South Korea group PBC had the strongest effect on consumers purchase intention. Multi-group SEM results showed that the difference in the chi-square statistics between the two models was significant. Significant differences were found in two structural paths: attitude → purchase intention and PBC → purchase intention.
TPB provided a useful framework for explaining green purchase behaviors in both countries as PBC and descriptive norms strongly predicted consumers’ intention to purchase. However, South Koreans were more affected by the social pressure: their purchase intention were strongly influenced by both injunctive norms and descriptive norms which was in contrast to the findings from American consumers. Injunctive norms were an insignificant predictor of purchase intentions in the U.S.A. group. Injunctive norms reflect individual’s perception of whether the behavior is approved or disapproved by others while descriptive norms involve individual’s perception of whether the behavior is typically performed by others. Therefore, when Korean consumers perceive that others believe it is a good idea to purchase organic cotton apparel and when they actually see others purchasing the product, they will feel more inclined to purchase the product themselves. This result is consistent with previous research that suggest conformity is a crucial factor for people belonging to a collectivistic culture (e.g., Hofstede, 1980; Kitayama et al., 1995).

• Tae-Im Han(Old Dominion University, USA)