“…Later, most research on ETFs focused on their role as financial products. Several authors have investigated the effective relationship between benchmark indices and their ETFs ( Aber, Li, & Can, 2009 ), concluding in some cases that there are tracking errors ( Johnson, 2009 ) due to market frictions that can result in ETF performance that deviates significantly from the benchmark to which investors seek exposure ( Tsalikis & Papadopoulos, 2019 ). Recent research has also studied the effect of ETFs on asset prices ( Da & Shive, 2018 ; Dedi & Yavas, 2016 ), considering ETF ownership as a defining variable ( Israeli, Lee, & Sridharan, 2017 ; Agarwal, Hanouna, Moussawi, & Stahel, 2018 ; Evans, Moussawi, Pagano, & Sedunov, 2018 ), and the relationship between ETFs’ objectives, returns, and volatility ( Leippold, Su, & Ziegler, 2015 ; Malamud, 2015 ; Shank & Vianna, 2016 ).…”