Results 181 to 190 of about 257,172 (325)
Portfolio Optimization for Pension Purposes: Literature Review
Journal of Economic Surveys, EarlyView.ABSTRACT This systematic review identifies persistent challenges and gaps in the literature on pension portfolio optimization models. We searched, selected, and critically analyzed 82 articles from three major academic databases published over the past decade to investigate the barriers to the effective implementation of these models.
Leonardo Moreira +2 more
wiley +1 more source
Registered index‐linked annuities in qualified retirement plans
Journal of Risk and Insurance, EarlyView.Abstract Many Americans remain financially underprepared for retirement. While automatic enrollment in employer‐sponsored retirement plans has helped, target‐date funds (TDFs) used as default investments have limitations. We propose target‐date registered index‐linked annuities (TD‐RILAs) as a transparent, cost‐effective alternative providing ...
Cameron Ellis +2 more
wiley +1 more source
Monitoring panels of sparse functional data
Journal of Time Series Analysis, EarlyView.Panels of random functions are common in applications of functional data analysis. They often occur when sequences of functions are observed at a number of different locations. We propose a methodology to monitor for structural breaks in such panels and to identify the changing components with statistical certainty.
Tim Kutta +2 more
wiley +1 more source
A Stochastic Tree for Bubble Asset Modelling and Pricing
Journal of Time Series Analysis, EarlyView.ABSTRACT We introduce a new stochastic tree representation of a strictly stationary submartingale process for modelling, forecasting, and pricing speculative bubbles on commodity and cryptocurrency markets. The model is compared to other trees proposed in the literature on bubble asset modelling and stochastic volatility approximation. We show that the
Christian Gourieroux, Joann Jasiak
wiley +1 more source
Sequential Detector Statistics for Speculative Bubbles
Journal of Time Series Analysis, EarlyView.ABSTRACT We propose a heteroskedasticity‐robust locally best invariant (LBI) statistic to test the hypothesis of a unit root against the alternative of an explosive root associated with speculative bubbles. Compared to existing alternatives such as Dickey‐Fuller type tests, the LBI statistic has a standard limiting distribution and greater power ...
Jörg Breitung, Max Diegel
wiley +1 more source
Polar Coordinates for the 3/2 Stochastic Volatility Model
Mathematical Finance, EarlyView.ABSTRACT The 3/2 stochastic volatility model is a continuous positive process s with a correlated infinitesimal variance process ν$\nu $. The exact definition is provided in the Introduction immediately below. By inspecting the geometry associated with this model, we discover an explicit smooth map ψ$ \psi $ from (R+)2$({\mathbb{R}}^+)^2 $ to the ...
Paul Nekoranik
wiley +1 more source
Rough PDEs for Local Stochastic Volatility Models
Mathematical Finance, EarlyView.ABSTRACT In this work, we introduce a novel pricing methodology in general, possibly non‐Markovian local stochastic volatility (LSV) models. We observe that by conditioning the LSV dynamics on the Brownian motion that drives the volatility, one obtains a time‐inhomogeneous Markov process. Using tools from rough path theory, we describe how to precisely
Peter Bank +3 more
wiley +1 more source