The balanced life : using strategies from behavioral science to enhance wellbeing Much research has documented concepts related to the balanced life in the literatures of organizational industrial psychology and human resource management. These concepts include work life balance work family conflict work family interference and work family interface (see literature reviews of various concepts related to work life balance by Allen et al. 2000; Bulger & Fisher 2012; Byron 2005; Casper et al. 2007; Danna & Griffin 1999; Eby et al. 2005; Eby Maher & Butts 2010; Greenhaus & Allen 2011; Kalliath & Brough 2008; Kossek & Ozeki 1998; Lee & Sirgy 2017; McNall Nicklia & Masuda 2010; Sirgy & Lee 2016 2017; Sirgy et al. 2008; Yasbek 2004). In the literature on subjective well being and quality of life only a few studies were found that specifically addressed the concept of life balance. For example Diener Ng and Tov (2008) reported a study involving a representative sample from around the world to assess peoples affect balance (positive versus negative affect) on the previous day and the various activities they had engaged in. The study found that the most popular activity that most people engaged in was socializing with family and friends. In this context the study also found a decreasing marginal utility of this type of activity. That is to ensure an optimal level of life satisfaction people attempted to engage in a variety of activities because satisfaction from one type of activity diminishes in time. Sheldon and Niemiec (2006) demonstrated that life balance is achieved not only by the fulfillment of psychological needs (needs for autonomy competence and relatedness) but a balanced effect among the satisfaction of these needs