2011 op-ed in the New York Times (63) Barro R.J., "Government Spending in a Simple Model of Endogeneous Growth," Journal of Political Economy, 1990; Jaimovich, N. and S. Rebelo, "Non-Linear Effects of Taxation on Growth," NBER, 2012 (64) Jonathan D. Ostry, Andrew Berg, and Charalambos G. Tsangarides, Febru