Abstract:
The objectives of this research were studied the effect of consumers' integrated marketing communication on the decision to buy vitamin water in Nakhon Ratchasima. Questionnaires were used as a tool to collect data from 396 consumers of people who used to consume vitamin water and live in Mueang District, Nakhon Ratchasima Province. The descriptive statistical analyzes the data, including frequency, percentage, mean, standard deviation, and hypothesis testing test by multiple regression analysis. The findings were as follows: Integrated marketing communication consisting of Advertising, Sales Promotion, and Event, affected a favorable decision to buy vitamin water from consumers in Mueang Nakhon Ratchasima with a statistical significance level of 0.05. On the other hand, Public Relations and Direct Marketing affect an adverse decision to buy vitamin water. All the independent variables were coefficients of integrated marketing communication at 60.9 percent (Adj
= 0.609).