This paper investigates the optimal retirement of an individual in the presence of involuntary unemployment risks and borrowing constraints in a complete market with frictions. An intensity model and loading factors are used to illustrate these involuntary unemployment risks and frictions in...

We develop a new approach for solving the optimal retirement problem for an individual with an unhedgeable income risk. The income risk stems from a forced unemployment event, which occurs as an exponentially-distributed random shock. The optimal retirement problem is to determine the...

To effectively cope with an unexpected, large, and negative income shock, I propose a life-cycle model for income risk management. I analyze the intertemporal consumption-investment problem in an incomplete market. I suggest a hybrid of the martingale approach and the dynamic programming...

In the aftermath of the financial crisis of 2008, there is increased concern about the potentially catastrophic pension default risk, which results in significant decreases in pension benefits. In order to address the challenge of annuity income uncertainty, I propose a dynamic annuitization...

We develop a retirement model with long-run income risk in which the wealth threshold for retirement is shown to be a function of the extent of the long-run income risk. By devising a new numerical algorithm, we solve the two-dimensional retirement problem. The two-dimensional retirement...

In this paper, we develop a new dynamic programming approach for solving an optimal retirement model in a two-dimensional incomplete market, which is induced by forced unemployment risk and borrowing constraints. We show that the two dimensions jointly affect an individual's optimal consumption,...

This paper presents an entrepreneurial optimal business plan in which optimal consumption and portfolio rules, and optimal exit strategy for an entrepreneur are jointly determined in the presence of undiversifiable idiosyncratic risk. We find that the entrepreneur is more likely to exit from her...