This study investigates factors affecting the adoption of online grocery shopping and online grocery purchase amount based on the theories of innovation classification scheme, food related lifestyle, and product heterogeneity. Using real purchase data from 732 consumer households, logit regression and linear regression with Box-Cox transformation were conducted to accomplish the goals of this study. This study found that the effect of convenience variables and food related lifestyle variables varies across the context (adoption vs. post-adoption) and product categories. Interestingly, the time requirement to access offline grocery markets, one of the convenience variables, had no effect on the adoption of online grocery shopping. However, it did affect the online grocery purchase amount. Theoretical and managerial implications are also derived from the findings of this study.

This research focuses on the comparison of piracy behaviour between Korea and Vietnam, and empirical validation of a model of software piracy based on expected utility theory, deterrence theory and institution isomorphism theory. A survey of 132 (Korea) and 145 (Vietnam) respondents was carried out in 2008 and PLS (Partial Least Square) was utilized for the analysis. Our results indicate that the relationships between punishment certainty and attitude, and mimetic pressure and intention, are significantly different between Korea and Vietnam. Several implications are considered from the political and cultural aspects.

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This paper estimated the demand function of the cuts of pork by using the consumer panel and the weather data from the Korea Meteorological Administration with a log-log model and AIDS model. The results show that the price elasticity of demand for cuts of pork is high in the sequence of arm shoulder, leg, special cuts, tenderloin, blade shoulder. In contrast, spare rib, belly and loin are classified as low price elasticity of demand. The income elasticities of demand for leg and blade shoulder are 11% and 7.6% respectively. The loin is classified as inferior goods, because demand decreases when income increases. The results also demonstrate show that the demand increases highly in the sequence of loin, arm shoulder, spare rib, belly if housewife is older, and the demand of belly increases when family number increases. Belly substitutes every cut except spare rib, and tenderloin substitutes special cuts. Spare rib, on the other hand, does not substitute other cuts. In addition, job status, family member, husband job, purchasing place, consumer characteristic, eating-out times, purchasing time, and weather are statistically significant.

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