Networking is of utmost importance for entrepreneurial success (e.g., Stam, Arzlanian, & Elfring, 2014) and continues to be a prominent theme in entrepreneurship research (Busenitz, Plummer, Klotz, Shahzad, & Rhoads, 2014). Network characteristics, such as network size and quality, can differ significantly from one entrepreneur to another. However, it remains unclear why those differences occur. Sarasvathy and Venkataraman (2011) go so far as to say that “almost the entirety of social networks research takes networks as mostly given.” This study tries to shed some light on the dark by empirically investigating “entrepreneurs’ dispositional affect”, which can be defined as entrepreneurs’ “stable tendency to experience positive [or negative] moods and emotions” (Baron, Hmieleski, & Henry, 2012). Specifically, this study analyzes to what degree entrepreneurs’ dispositional affect (independent variable) can predict entrepreneurs’ network size, time spent networking, and long-term orientation & quality of relationships (dependent variables).