Results 71 to 80 of about 14,906 (246)

On the Provision of International Public Goods in Dynamic Open Economies

open access: yesReview of International Economics, Volume 34, Issue 1, Page 198-218, February 2026.
ABSTRACT This study develops a dynamic two‐country model with an international public good, the stock of which positively affects the productivity of the private‐goods sectors in each country, and the evolution of the stock is determined by each country's voluntary contribution in the form of public investment. Two scenarios are examined: A cooperative
Akihiko Yanase
wiley   +1 more source

Unified Asymptotics for Investment Under Illiquidity: Transaction Costs and Search Frictions

open access: yesMathematical Finance, Volume 36, Issue 1, Page 67-98, January 2026.
ABSTRACT This paper investigates the optimal investment problem in a market with two types of illiquidity: transaction costs and search frictions. We analyze a power‐utility maximization problem where an investor encounters proportional transaction costs and trades only when a Poisson process triggers trading opportunities.
Tae Ung Gang, Jin Hyuk Choi
wiley   +1 more source

Legendre Transform Dual Asymptotic Solution for Insurers Under the Heston Local‐Stochastic Volatility Model: A Comparison of Variance Premium and Expected Value Principles

open access: yesJournal of Mathematics, Volume 2026, Issue 1, 2026.
This study examines optimal investment and reinsurance strategies for two competing insurers who are concerned with their relative performance. Each insurer can purchase reinsurance and invest in a financial market consisting of one risk‐free asset and one risky asset, with the risky asset’s price modeled using the Heston local‐stochastic volatility ...
Winfrida Felix Mwigilwa, Nian-Sheng Tang
wiley   +1 more source

On the Stochastic Optimal Control Model of the Investments of Defined Contribution (DC) Pension Funds

open access: yesJournal of Applied Sciences and Environmental Management, 2020
One of the major problems faced in the management of pension funds and plan is how to allocate and control the future flow of contribution likewise the proportion of portfolio value and investments in risky assets. In this work, optimal investment for a
T. Latunde   +3 more
doaj   +1 more source

AI Applications in the Environmental Control of Controlled Environment Agriculture in the Digital Age

open access: yesModern Agriculture, Volume 3, Issue 2, December 2025.
Artificial intelligence (AI) is reshaping controlled environment agriculture (CEA) by powering climate prediction, yield forecasting, pest and disease detection, and intelligent control systems. These innovations enhance efficiency, resilience, and sustainability while enabling multiscale integration with renewable energy and existing infrastructures ...
Wei‐Han Chen   +3 more
wiley   +1 more source

Policy Iteration for Exploratory Hamilton–Jacobi–Bellman Equations

open access: yesApplied Mathematics & Optimization
25 ...
Hung Vinh Tran   +2 more
openaire   +2 more sources

A Physics‐Informed Learning Framework to Solve the Infinite‐Horizon Optimal Control Problem

open access: yesInternational Journal of Robust and Nonlinear Control, Volume 35, Issue 16, Page 6932-6944, 10 November 2025.
ABSTRACT We propose a physics‐informed neural networks (PINNs) framework to solve the infinite‐horizon optimal control problem of nonlinear systems. In particular, since PINNs are generally able to solve a class of partial differential equations (PDEs), they can be employed to learn the value function of the infinite‐horizon optimal control problem via
Filippos Fotiadis   +1 more
wiley   +1 more source

Stochastic Optimal Control of Averaged SDDE with Semi-Markov Switching and with Application in Economics

open access: yesMathematics
This paper is devoted to the study of stochastic optimal control of averaged stochastic differential delay equations (SDDEs) with semi-Markov switchings and their applications in economics.
Mariya Svishchuk, Anatoliy V. Swishchuk
doaj   +1 more source

Portfolio Optimization with Asset-Liability Ratio Regulation Constraints

open access: yesComplexity, 2020
This paper considers both a top regulation bound and a bottom regulation bound imposed on the asset-liability ratio at the regulatory time T to reduce risks of abnormal high-speed growth of asset price within a short period of time (or high investment ...
De-Lei Sheng, Peilong Shen
doaj   +1 more source

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