Yeonshin Kim

Effort investment in persuasiveness: a comparative study of environmental advertising in the United States and Korea

The authors of this article compare American and Korean reactions to the persuasiveness of environmental advertising campaigns that are preceded by environmental pledges. Findings indicate that environmental advertising effectiveness depends on how much effort recipients put into making environmental pledges prior to viewing the advertisements. Study 1 demonstrates that when environmental pledges requesting more effort precede ad messages, Americans are more persuaded but Koreans are less persuaded. Study 2 extends the findings and rules out an alternative explanation – mere-effort effect – by showing that the results are replicated only with an issue-relevant pledge, but not with an issue-irrelevant pledge.

Assertive Environmental Advertising and Reactance: Differences Between South Koreans and Americans

In three studies, the authors show that Americans and South Koreans react differently to environmental advertising campaigns featuring assertive messages that threaten autonomous freedoms. The findings uphold their hypothesis that cultural differences determine whether consumers will show reactance to assertive advertising campaigns. Study 1 demonstrates that Americans are less receptive to an assertive recycling message using imperatives such as should, must, and ought and more receptive to a nonassertive message using could, might, and worth. South Koreans do not show the reactance response. Study 2, an energy-saving campaign, conceptually replicates the findings and further shows that perceived threat to freedom mediates the effects. Study 3 uses a realistic setting (i.e., online magazine) to further support the hypothesis that cultural differences affect attitudes toward assertive messages, but adds perceived politeness as an underlying second mediator.