691302.fig.004a
(a)
691302.fig.004b
(b)
691302.fig.004c
(c)
691302.fig.004d
(d)
Figure 4: (a) Distribution of Margin_price1. (b) Distribution of Margin_price2. (c) Distribution of Margin_price3. (d) Distribution of Margin_price4. Source: authors’ calculations.