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Optimization in economies with nonconvexities

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TLDR
Conditions under which the Classical Lagrangian serves as an exact penalization of a nonconvex programming of a constrained optimization problems in economics are given.
Abstract
Nonconvex optimization is becoming the fashion to solve constrained optimization problems in economics. Classical Lagrangian does not necessarily represent a nonconvex optimization problem. In this paper, we give conditions under which the Classical Lagrangian serves as an exact penalization of a nonconvex programming. This has a simple interpretation and is easy to solve. We use this Classical Lagrangian to provide su¢ cient conditions under which value function is Clarke dif"

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Journal ArticleDOI

A Nonsmooth Approach to Envelope Theorems

TL;DR: In this paper, a nonsmooth approach to envelope theorems applicable to a broad class of parameterized constrained nonlinear optimization problems that arise typically in economic applications with nonconvexities and/or non-smooth objectives was developed.
Journal ArticleDOI

A nonsmooth approach to envelope theorems

TL;DR: In this paper, a nonsmooth approach to envelope theorems applicable to a broad class of parameterized constrained nonlinear optimization problems that arise typically in economic applications with nonconvexities and/or non-smooth objectives was developed.
References
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Lagrange-type functions in constrained non-convex optimization

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The Comparative Statics of Constrained Optimization Problems

TL;DR: In this article, the problem of maximizing a real-valued function when the objective function is constrained to lie in some subset of R l is studied, and a natural way to order the constraint sets C and find the corresponding restrictions on the objective functions that guarantee that optimal solutions increase with the constraint set is developed.
Journal ArticleDOI

On uniqueness of Kuhn-Tucker multipliers in nonlinear programming

TL;DR: It is shown that this new constraint qualification is a necessary and sufficient condition for the uniqueness of Kuhn—Tucker multipliers and implies the satisfaction of second order necessary optimality conditions at a local minimum.