American trade policy towards Sub Saharan Africa –- a meta analysis of AGOA

(a) precision vs. T-stats (6 large estimates excluded) (b) precision vs. T-stats (all estimates included)

Figure 3: Galbraith plots of agoa impact

(a) coefficient vs. no. of years of data post agoa (b) cofficient vs. no. of years published post agoa

(c) t-statistics vs. no. of years of data post agoa (d) t-statistics vs. no. of years published post agoa

Figure 4: Relationship between years after agoa and coefficient/T-stat