“…First, research on personality development supports the plasticity principle, which states that personality characteristics (such as self-esteem) can be influenced by environmental factors, including life events, at any age . In fact, empirical studies suggest SELF-ESTEEM, NARCISSISM, AND STRESSFUL LIFE EVENTS 7 that life events influence the Big Five personality factors (Lüdtke et al, 2011;Specht, Egloff, & Schmukle, 2011) and well-being (Headey & Wearing, 1989;Lucas, 2007;Luhmann, Hofmann, Eid, & Lucas, 2012). Second, research on the patterns of self-esteem development shows that individuals differ substantially in the particular trajectory they follow (Chung et al, 2014;Erol & Orth, 2011;Orth et al, 2010;Wagner, Lüdtke, Jonkmann, & Trautwein, 2013).…”