“…Increased perceptions of expertise could also be driven in part by consumers' consistent perceptions that sustainable products are more expensive compared to traditional products (Berger, 2019; Guyader, Ottosson, & Witell, 2017; Ivanova, 2019). Signalling theory suggests that consumers make their judgments and form perceptions about the firm's expertise using extrinsic cues or signals, such as a price range (Pontes, Palmeira, & Jevons, 2017; Wernerfelt, 1988), where the highest‐end price is often the signal of the brand's level of expertise (Heath, DelVecchio, & McCarthy, 2011; Randall, Ulrich, & Reibstein, 1998). Thus, we expect perceptions of expertise to be higher for companies that use green marketing signals.…”