Fig. 3
Articles published on the health effects of smoking and the individual utliity function. Articles retrieved by Scopus with search terms (i)-(iv) and individual utility profiles from Eq. (2) for varying values of δ. a (Left axis - blue, solid) Number of articles published per year and (right axis - black, dashed) cumulative number of articles published n(t). b Discounted utility u x (t) from Eq. (2) with u0=0.51 and u ∞ =0.49, using cumulative number of articles published n(t). (Solid black) δ=0.4, (dashed black) δ=0.6, (dotted black) δ=0.8, (solid blue) δ=0.9, (dashed blue) δ=0.99, (dotted blue) δ=0.998, and (solid red) δ=0.9995