Joint distribution \(H(x,y)=\mathcal{C}(H_X(x),H_Y(y))\) where the marginal distributions are Fréchet with shape parameter \(\theta=1.5\) and the copula is Gaussian with rank correlation \(\tau=\{-0.95,0,+0.95\}\). Panel A shows draws of individual skills \(x(i),y(i)\). Panel B shows the implied feasible sets \(\mathcal{B}\) constraining the aggregate skills \(X,Y\).
In the paper: Figure 2. Distribution of individual skills and aggregate bundling constraints.