IntroductionWhen your neighbor owns a better car or a bigger house, when your classmate receives a better grade, or when your colleague sitting at the desk next to you has been promoted, you may feel envious. Material goods, social position, physical appearance, competence, skills, or even psychological state can become an object of envy (Miceli & Castelfranchi, 2007). Envy occurs in any situation when one makes an upward comparison with another and perceives others as being more fortunate than one is (van de Ven, Zeelenberg, & Pieters, 2009). The feeling of envy is a tendency present in all cultures, and in almost all languages there is a word for this phenomenon (Smith, Parrott, Diener, Hoyle, & Kim, 1999). Although envy has been an issue of philosophical or religious debate for a long time, psychological research on envy is scarce, and, considering the impact of envy on social life, this emotion should be investigated more thoroughly (Miceli & Castelfranchi, 2007). To fill this gap as well as to learn more about envy and particular dispositions related to it, the present study examined whether envy is related to positive dispositions such as self-esteem and optimism and to the tendency to ruminate. Additionally, the study was to validate the Polish version of the Dispositional Envy Scale (DES).In the literature, dispositional and episodic envy can be distinguished (Cohen-Charash, 2009). The first is a permanent, and chronic individual difference variable. In other words, it is a general tendency to feel envy (Smith et al., 1999). By contrast, episodic envy can be felt by everybody as a result of negative social comparison and consists of two components: negative emotional feelings and negative compari sons (Coh en-Charash, 2009). It has been suggested that there are two distinct forms of envy. Van de Ven et al. (2009) tested the distinction between two types of envy: benign and malicious, assumed to be quantitatively different. Malicious envy is defined as related to the motivation to harm the position of a superior other. This feeling is hostile and consists in a desire to damage the position of the envied person. Benign envy is connected with improving oneself by moving upward. This form of envy appears when the envied person has something that one desires and involves effort aimed at improving oneself but n ot mean t t o dest roy t h e oth er per son (Crusius & Lange, 2014). These two emotional experiences have opposite outcomes. A person feeling benign envy is motivated to improve their situation (moving-up motivation), while in case of malicious envy the motivation is to do harm to the envied person (pulling-down motivation) (van de Ven et al., 2009). Some results indicate that the DES measures malicious rather than benign envy (Lange & Crusius, 2015).Envy and JealousyIn the literature, envy has been defined as a hostile emotional reaction and a mixture of different emotions that comprises hostility, resentment, as well as feelings of inferiority, and injustice (Smith & Kim, 2007). This feeling is caused by the belief that other people have something (a thing, social position, a trait) that one does not have and a longing to have it or a wish that the other person did not have it either (Parrott, 1991). Silver and Sabini (1978) highlighted two different meanings of the term envy, depending on the context. It can either convey a compliment or praise (That's so wonderful, I envy you! p. 106) or function in a negative way.In ever yda y la n gua ge, en vy is often wrongly used interchangeably with jealousy. However, there is a clear distinction between these two emotions (Parrott & Smith, 1993). Envy arises in situations when one lacks some attribute or value that another person is in possession of; in the case of jealousy, one is afraid of losing one's partner to a rival (Smith & Kim, 2007). Parrott and Smith (1993) examined the emotional experiences of envy and jealousy. …