Papers, ranked by score

Ordered by a blend of empirical rigor (60%) and math complexity (40%).

Portfolio Choice under General Utility with Transaction Costs and Search Frictions

We study finite-horizon portfolio optimization with proportional transaction costs and trading opportunities arriving at the jump times of a Cox process. Borrowing and short-selling are prohibited, while utility functions need not be concave, increasing, or differentiable. The admissible class inclu

Lab Rats Math 9 Rigor 4 ·  October 1, 2026

Income Disaster, Role of Income Support, and Optimal Retirement

This paper investigates the interactions among consumption/savings, investment, and retirement choices with income disaster. We consider low-income people who are exposed to income disaster so that they retire involuntarily when income disaster occurs. The government provides extra income support to

Lab Rats Math 7.5 Rigor 4 ·  September 16, 2025

Unified Asymptotics For Investment Under Illiquidity: Transaction Costs And Search Frictions

This paper investigates the optimal investment problem in a market with two types of illiquidity: transaction costs and search frictions. Extending the framework established by arXiv:2101.09936, we analyze a power-utility maximization problem where an investor encounters proportional transaction cos

Lab Rats Math 8.5 Rigor 1.5 ·  July 18, 2024

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