output
20222026
most citedA Deterministic Annealing Local Search for the Electric Autonomous Dial-A-Ride Problem

42 citations

13 papers

econ.TH2026

Globalization, economic growth, and innovation: A two-country two-period model

Cuong Le Van, Duc V. Le, Thanh Tam Nguyen-Huu

This paper examines how a developing country can benefit from trade liberalization. We develop a two-period model, comprising an autarky phase and a globalization phase, and a two-…

math.FA2026★ 2 cited

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-Stampa…

math.OC2026

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…

eess.SY2026

New Formulations and Discretization Insights for the Electric Autonomous Dial-a-Ride Problem

Boshuai Zhao, Adam Abdin, Jakob Puchinger

The Electric Autonomous Dial-a-Ride Problem (E-ADARP) involves routing and scheduling electric autonomous vehicles under battery capacity and partial recharging constraints, aiming…

math.OC2025

The Bi-objective Electric Autonomous Dial-a-Ride Problem

Yue Su, Sophie N. Parragh, Nicolas Dupin +1

The electric autonomous dial-a-ride problem (E-ADARP) introduces electric, autonomously driving vehicles and their unique requirements into the classic dial-a-ride problem, where p…

q-fin.CP2025

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…

q-fin.CP2025

To Bubble or Not to Bubble: Asset Price Dynamics and Optimality in OLG Economies

Stefano Bosi, Cuong Le Van, Ngoc-Sang Pham

We study an overlapping generations (OLG) exchange economy with an asset that yields dividends. First, we derive general conditions, based on exogenous parameters, that give rise t…

econ.TH2025★ 2 cited

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…

q-fin.CP2025

Equilibrium with non-convex preferences: some insights

Cuong Le Van, Ngoc-Sang Pham

We study the existence of equilibrium when agents' preferences may not beconvex. For some specific utility functions, we provide a necessary and sufficientcondition under which the…

q-fin.CP2025

(Non-Monotonic) Effects of Productivity and Credit Constraints on Equilibrium Aggregate Production in General Equilibrium Models with Heterogeneous Producers

Ngoc-Sang Pham

We show that, in a market economy, the aggregate production level depends not only on the aggregate variables but also on the distribution of individual characteristics (e.g., prod…

q-fin.GN2025★ 1 cited

FDI versus R\&D in an endogenous growth model

Thanh Tam Nguyen-Huu, Ngoc-Sang Pham

We investigate the role of foreign direct investment (FDI) and research and development (R\&D) in the transitional dynamics of host countries using an optimal growth model. FDI may…

q-fin.GN2024

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…

math.OC2022★ 42 cited

A Deterministic Annealing Local Search for the Electric Autonomous Dial-A-Ride Problem

Yue Su, Jakob Puchinger, Nicolas Dupin

This paper investigates the Electric Autonomous Dial-A-Ride Problem (E-ADARP), which consists in designing a set of minimum-cost routes that accommodates all customer requests for…