1. Convex set
2. ) the following three conditions are sufficient: References Amemiya;v (x) m(x, c) = w(x) 0 c, (x, c) ? (X , B) , for some w : X ? R k . Sufficient conditions for the Boundary condition According to Manski,1985
3. Estimating Portfolio and Consumption Choice: A Conditional Euler Equations Approach;M W Brandt;Journal of Finance,1999
4. An Optimization Criterion for Linear Inverse Estimation