... In negotiations, parties anchor on self-generated or externally provided information (Blount, Thomas-Hunt, & Neale, 1996;Buelens & Van Poucke, 2004;Epley & Gilovich, 2006;Schaerer et al., 2016). Negotiators typically generate their own reservation prices (Raiffa, 1982), comparison levels of alternatives (Thibaut & Kelley, 1959; BATNA: Best Alternative To a Negotiated Agreement, see Fisher & Ury, 1981;Pinkley, Neale, & Bennett, 1994), and target prices (Galinsky, Mussweiler, & Medvec, 2002;Huber & Neale, 1986;Pruitt, 1981). In addition to self-generated reference points (Diekmann, Tenbrunsel, Shah, Schroth, & Bazerman, 1996;Ritov, 1996), negotiators can also be anchored by externally provided information, such as previous precedents of a negotiation (De Dreu, Koole, & Oldersma, 1999;Lehr, Vyrastekova, Akkerman, & Torenvlied, 2016) or, importantly, opening proposals from the opponent (Yukl, 1974). ...