“…The key advantage of these methods is that they allow us to control for potential biases without relying on strictly exogenous instrumental variables, which in many empirical settings are impossible to obtain. Because of this practicality, dynamic panel data methods have been used in numerous contexts in economics and marketing, including advertising (Clark et al, 2009;Song et al, 2015;McAlister et al, 2016), customer-relationship management (Van Triest et al, 2009;Tuli et al, 2010;Rego et al, 2013), product innovation (Narasimhan et al, 2006;Fang et al, 2016), habit formation (Shah et al, 2014), entertainment marketing (Narayan and Kadiyali, 2016;Mathys et al, 2016;Chung, 2017), social media (Archak et al, 2011), marketing-finance interface (Germann et al, 2015;Feng et al, 2015), market entry (Mukherji et al, 2011), crowd funding (Burtch et al, 2013), political economics (Acemoglu et al, 2008), and growth economics (Durlauf et al, 2005).…”