We examined long-term variations in sea surface temperature (SST) and annual amplitudes of SST around the Korean Peninsula. Two SST data sets with data periods of approximately 51 years and longer than 100 years, respectively, were obtained from the National Institute of Fisheries Science and Japan Meteorological Agency. SST of Korean waters clearly increased during last 51 years (1968-2018), which was 2.5 times higher than the global trend. This significant increasing trend was caused by the dominant increasing SST trend during winter. However, a negative and positive SST anomaly frequently appeared during winter and summer, respectively, in a recent decade. These features of seasonal SST variation have changed the annual amplitude of SST, and resulted in a drastically increasing trend after 2009. Using the longer SST data set, it was revealed that the decreasing SST trend in winter began in the 2000s and the increasing SST trend in summer bagan in the 1990s. During a recent decade, there was a distinctive SST increase in summer, whereas a clear decrease in winter. In summary, the annual amplitude of SST around the Korean Peninsula significantly changed from a decreasing trend to an increasing trend during a recent decade.

Generation X and baby boomers represent a significant group that are willing to spend. According to the American Express Open Forum (2013), baby boomers in America between the age 49 and 65 are more in favor of spending than any other consumer group. The Hyundai Research Institute (2015) stated that the market size for baby boomers will increase over 18% annually in Korea. Equally important is generation X, because this group is also reaching a high-earning stage of their lives (Luxury Daily, 2011). Further, they are predicted to take the place of baby boomers as a cash cow for marketers (American Express Open Forum, 2014).This lucrative demographic of baby boomers and generation X is a potential gold mine. Despite the fact that these groups are showing such interest in spending, brands and retailers are not giving them the same amount of attention. While more middle-aged women want to dress more youthfully, retailers and brands are not evolving their products at the same pace (USA Today, 2008). They are finding it difficult to find a solution to meet the needs of this aging but youthful group (USA Today, 2008). Brands such as Chico’s and Ann Taylor are not providing the styles that the women want, so boomers turn to younger brands such as Abercrombie & Fitch, H&M, and Forever 21 (Forbes, 2008). But the younger brands are not satiating their needs, either (Forbes, 2008). While the boomers and generation X are harnessing fashion economic control, the players in the market are lagging behind. To understand what the market must do to meet the apparel needs of baby boomers and generation X, it is pivotal to delve into how they feel about their age and how it affects the factors that influence their purchasing. According to Schiffman and Sherman (1991), aging is more of a state of mind than a physical state. Understanding older consumers through cognitive age (self-perceived age) has been done by many researchers (Sudbury & Simcock, 2009; Szmigin & Carrigan, 2012). Cognitive age indicates how older people view themselves in the context of aging. Barak and Schiffman (1981) stated that elderly respondents identified themselves as a younger age group when they were asked about their age-related feelings and actions. Equally important is understanding how cognitive age affects the physical self, which in this study, is body cathexis. Body cathexis, according to Labat and DeLong (1990), is “the evaluative dimension of body image and is defined as a positive and negative feeling towards one’s body.” While women may feel younger than they actually are, the body is inevitably aging. As Jang and Yoo (2011) reported after studying Korean women in their 40s and 50s, the correlation between cognitive ages and ideal body images were significant, and the younger they feel, the younger body images they desired. In addition, the physical self highly influences a person’s choice of clothing and how they perceive clothing in general (Kwon & Parham, 1994). When clothing is used in a positive manner, it can boost one’s self-confidence (Alexander, Connell, & Presly, 2005). It is also thought to be an extension of the physical self (Horn & Gurel, 1981). By understanding what middle-aged women seek when buying clothes, we can assume how satisfied they are about their body. Thus, the clothing benefits items and purchasing behavior of middle-aged women would most likely reflect the function of their clothing and how they perceive themselves.