“… 2 See, for example, Dutta and Radner, (2004), Polasky and Tarui, (2005), Polasky et al ., (2006), Bretschger and Smulders, (2007), Tarui, (2007), Tarui et al ., (2008), Pindyck, (2009), Breton et al ., (2010), Harstad, (2010), Heal and Tarui, (2010). …”