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This paper proposes an empirical similarity approach to forecast weekly volatility by using search engine data as a measure of investors attention to the stock market index. Our model is assumption free with respect to the underlying process of investors attention and significantly outperforms...
Persistent link: https://www.econbiz.de/10013012488
This paper explores the use of Google trending data as an indicator for market sentiment.The Google query records on keywords including stock, market, correction, and crash areincorporated into an event based trading model for S&P 500 index in an attempt to significantlyenhance the risk-profile...
Persistent link: https://www.econbiz.de/10013307523
Retail investors pay over twice as much attention to local companies than non-local ones, based on Google searches. News volume and volatility amplify this attention gap. Attention appears causally related to perceived proximity: first, acquisition by a nonlocal company is associated with less...
Persistent link: https://www.econbiz.de/10012698207
This paper proposes an auxiliary particle filter algorithm for inference in regime switching stochastic volatility …-based algorithm is presented for the method which demonstrated that we are able to estimate a class of models in which the probability …
Persistent link: https://www.econbiz.de/10014164616
I present substantially extended back-testing results of the algorithmic approach to delta-hedging described in my earlier paper. Along with previously researched EURUSD straddles I research USDJPY and GBPUSD straddles as well as call and put spread option combinations. Back-tested period is...
Persistent link: https://www.econbiz.de/10012949449
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with MCMC algorithm” cited, Rev Quant Finan Acc (2012) 38:479-493 DOI 10.1007/s11156-011-0236-1 where we propose initially … estimate the parameter of a mixture stochastic volatility model, we first use the Expectation-Maximisation (EM) algorithm. The …
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