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...

This paper is an overview of how insurance instruments could be used in Indonesia to improve disaster risk finance (the arrangements for managing the financial consequences of disaster). We review the policy and research literature to describe the existing arrangements in Indonesia for preparing...

To effectively cope with uncertainty over the life cycle, I propose a new decision model. In particular, the model maximizes a person's welfare that counts not only on consumption of goods and services, but also on total available financial resources over the entire lifetime. In the finance...

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...

One can find it challenging to deal with verification theorems for optimal consumption and investment problems with annuitization. I pose a tractable framework to prove verification theorems for the problems. I revisit an annuitization model of Park (2015) and prove the verification theorem for...

In this paper, we derive optimal investment policies at the industry portfolio level under the stochastic investment opportunities of dynamic and asymmetric properties. For this purpose, we present a new model of intertemporal dynamic portfolio choice as well as non-myopic optimal consumption...

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,...

In this paper we generalize the following result of Yaari (1965) on annuitization with an agent's optimal retirement: it is optimal for individuals to annuitize all of their wealth in the absence of bequest motive. We have other results that refine or extend the result of Yaari (1965). Full...

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...