Alan Greenspan’s paper (March 2010) presents his retrospective view of the crisis. His theme has several parts. First, the housing price bubble, its subsequent collapse and the financial crisis were not predicted either by the market, the FED, the IMF or the regulators in the years leading to...

Time horizon dimensions are added to asset pricing theory. Single period, static, arbitrage pricing theory (APT) describes single period risk with long horizon contributions in the frequency domain. Mean-reversion risks correspond to horizon variances. Mean-reversion risk is measured using the...

We revisit mean-risk portfolio selection in a one-period financial market where risk is quantified by a positively homogeneous risk measure ρ on L1. We first show that under mild assumptions, the set of optimal portfolios for a fixed return is nonempty and compact. However, unlike in classical...

We present an analytical framework for active strategic risk management for sovereign wealth funds (SWFs). This paper extends our previous work on foreign exchange reserves management that integrates risk-return objectives with macroeconomic, macro-prudential and sovereign debt management...

There is a significant potential demand in many countries around the world for a flexible product to manage individual longevity risk arising from the prevalence of defined contribution pensions, uncertainty in improvements in life expectancy, potential reductions in public pensions and a lack...

Risk parity has been considered a heuristic asset allocation method. In this paper, we show that, to the contrary, risk parity is a special case of a mean-risk type of a portfolio optimization problem with log-regularization to constrain weights. We show that log-regularization leads to a fund...

The purpose of the transparency on the risk profile of non-equity investment products is to allow investors to take informed investment decisions. In an international framework characterized by an increasing globalization of markets and a growing integration of banking, asset management and...

This paper derives continuous-time conditions for a manager compensated with a call option to increase risk-taking. We show that the principles proposed by Ross (2004) in a one-period environment remain valid in continuous time

Pension funds and life insurers offering annuities hold long term liabilities linked to longevity. Risk management of life annuity portfolios aims to immunize or hedge both interest rate and mortality risks. Standard fixed interest duration-convexity hedging must be adapted to allow for both...

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...