Figure 2

Example model solution space with R _MD < 1+R _SD and U _ge ≥ 0. Input parameters: λ_MZ = 3.4, λ_DZ = 3, λ_sib = 2, ε = 0.2, PAF^E_e = 0.5, c_MD = 1, r_t = 0.1. Hence R_MD = 1.2, R_SD = 0.5.