Renting, Owning, and Moving: Housing Tenure Choice with Transaction Costs

Kexin Chen, Gugyum Ha, Junkee Jeon

Work in progress

Finite-horizon optimal consumption and investment with welfare constraints

Gugyum Ha, Junkee Jeon, Takwon Kim

Work in progress

Optimal Consumption and Investment with Time-Dependent Costs of Living-Standard Adjustments

Gugyum Ha, Junkee Jeon, Jehan Oh

Work in progress

Finite-Horizon Portfolio Choice, Labor Supply, and Early Retirement under Borrowing Constraints 

Gugyum Ha, Junkee Jeon, Jihoon Ok

Submitted for publication

https://arxiv.org/abs/2606.21382

Finite-Horizon Optimal Consumption and Investment with Time-varying Job-switching Costs

Gugyum Ha, Junkee Jeon, Jihoon Ok

Submitted for publication

https://arxiv.org/abs/2603.08050

The Obstacle Problem Arising from the American Chooser Option 

Gugyum Ha, Junkee Jeon, Jihoon Ok

Submitted for publication

https://arxiv.org/abs/2506.03623