2 citations · 2 across the 3 of their papers we have counts for
7 papers
The relationship between general equilibrium models with infinite-lived agents and overlapping generations models, and some applications
Ngoc-Sang Pham
We prove that a two-cycle equilibrium in a general equilibrium model with infinitely-lived agents (GEILA) constitutes an equilibrium in an overlapping generations (OLG) model. Conv…
Hartman-Stampacchia theorem, Gale-Nikaido-Debreu lemma, and Brouwer and Kakutani fixed-point theorems
Pascal Gourdel, Cuong Le Van, Ngoc-Sang Pham +1
This paper uses the Hartman-Stampacchia theorems as the primary tool to prove the Gale-Nikaid{ô}-Debreu lemmas. It also establishes a cycle of equivalences among the Hartman-Stamp…
A note on first-order and transversality conditions in infinite-horizon continuous-time optimal control models
Stefano Bosi, David Desmarchelier, Ngoc-Sang Pham
We provide simple and easily verifiable necessary and sufficient conditions for infinite-horizon continuous-time optimal control problems. Under standard concavity and integrabilit…
Comment on 'Asset Bubbles and Overlapping Generations'
Ngoc-Sang Pham, Alexis Akira Toda
Tirole (1985) studied an overlapping generations model with capital accumulation and showed that the emergence of asset bubbles solves the capital over-accumulation problem. His Pr…
Global Characterization of Equilibria in Tirole's (1985) Model with a Dividend-Paying Asset
Ngoc-Sang Pham, Alexis Akira Toda
We revisit Tirole's classic paper "Asset Bubbles and Overlapping Generations" (1985, Econometrica) in the case of a dividend-paying asset. Recently, Pham and Toda (2026) constructe…
Wariness and Poverty Traps
Hai Ha Pham, Ngoc-Sang Pham
We investigate the effects of wariness (defined as individuals' concern for their minimum utility over time) on poverty traps and equilibrium multiplicity in an overlapping generat…