“…Income diversification has a positive effect on firm value as proxied by Tobin's Q value in banking (Lukmawijaya and Suk, 2015). On the other hand, this study is not supported by the research of (Aprilia and Darmawan, 2019;Natalia et al, 2016;Sianipar, 2015) that income diversification does not have a significant effect on firm value in different objects, namely ASEAN +3 banking and Indonesian banking. Research by (Hasibuan, Ar, and Endang, 2016) on the property and real estate companies, infrastructure companies (Aprilia and Darmawan, 2019) and in the consumer goods industry (Simetris and Darmawan, 2019) found that ROE has a positive effect on firm value.…”