“…Our paper also contributes to the large and growing literature on precautionary behavior. Examples include labor supply with wage risk (e.g., Block & Heineke, 1973; Chiu & Eeckhoudt, 2010), healthcare with risky treatment effectiveness (e.g., Courbage & Rey, 2012b; Dardanoni & Wagstaff, 1990; Echazu & Nocetti, 2013), precautionary saving due to income and interest rate risk (e.g., Eeckhoudt & Schlesinger, 2008; Jouini et al, 2013; Kimball, 1990; Rothschild & Stiglitz, 1971; Wong, 2019), precautionary insurance demand (Fei & Schlesinger, 2008) and precautionary effort (e.g., Courbage & Rey, 2012a; Eeckhoudt et al, 2012; Wong, 2016). Most of these papers do not consider nonlinearity and therefore cannot identify the various measures of technological efficacy that govern the comparative statics in our paper.…”