“…Although it has been argued that related diversification can improve performance (e.g., Christensen & Montgomery, 1981;Palepu, 1985;Rumelt, 1974Rumelt, , 1982Tanriverdi & Venkatraman, 2005) and that unrelated diversification can compromise it (e.g., Markides & Williamson, 1994), there is also ambiguity in the empirical evidence. Additionally, there are a few studies that have recently found an inverted U-shaped relationship (e.g., Kang, Lee, & Yang, 2011;Kistruck, Qureshi, & Beamish, 2013;Palich et al, 2000). This diversity of findings is obviously conditioned by methodological issues (such as the use of different samples, time periods, and measures of variables).…”