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The short-term economic effects of COVID-19 and risk-coping strategies of low-income households in Kenya : a rapid analysis using weekly financial household data

Janssens, Wendy; Pradhan, Menno; De Groot, Richard; … - 2020

This research assesses how low-income households in Kenya coped with the immediate economic consequences of the COVID-19 outbreak. It uses granular financial data from weekly household interviews covering six weeks before the first case was detected in Kenya to five weeks after. Our results...

Persistent link: https://www.econbiz.de/10012239595

Marketmaking middlemen

Gautier, Pieter; Hu, Bo; Watanabe, Makoto - 2016

This paper develops a model in which market structure is determined endogenously by the choice of intermediation mode. We consider two representative business modes of intermediation that are widely used in real-life markets: one is a middleman mode by which an intermediary holds inventories...

Persistent link: https://www.econbiz.de/10011520869

Decomposing portfolio value-at-risk : a general analysis

Hallerbach, Winfried G. - 1999 - This rev.: May 10, 1999

orhistorical and Monte Carlo simulation methods. Although these approaches to overall VaR estimation have receivedsubstantial … proposed estimation approach pairs intuitiveappeal with computational efficiency. We evaluate various alternative estimation …

Persistent link: https://www.econbiz.de/10011301159

Asymmetries in conditional mean and variance : modelling stock returns by asMA-asQGARCH

Brännäs, Kurt; Gooijer, Jan G. de - 2000

The asymmetric moving average model (asMA) is extended to allow forasymmetric quadratic conditional heteroskedasticity (asQGARCH). Theasymmetric parametrization of the conditional variance encompassesthe quadratic GARCH model of Sentana (1995). We introduce a framework fortesting asymmetries in...

Persistent link: https://www.econbiz.de/10011303289

A Bayesian analysis of unobserved component models using Ox

Bos, Charles S. - 2011

Estimation of the volatility of time series has taken off since the introduction of the GARCH and stochastic volatility … unobserved stochastic volatility, and the varying approaches that have been taken for such estimation.In order to simplify the … comprehension of these estimation methods, the main methods for estimating stochastic volatility are discussed, with focus on their …

Persistent link: https://www.econbiz.de/10011386121

Relating stochastic volatility estimation methods

Bos, Charles S. - 2011

Estimation of the volatility of time series has taken off since the introduction of the GARCH and stochastic volatility … unobserved stochastic volatility, and the varying approaches that have been taken for such estimation. In order to simplify the … comprehension of these estimation methods, the main methods for estimating stochastic volatility are discussed, with focus on their …

Persistent link: https://www.econbiz.de/10011386124