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We propose a semiparametric measure to estimate systemic interconnectedness across financial institutions based on tail-driven spill-over effects in a ultra-high dimensional framework. Methodologically, we employ a variable selection technique in a time series setting in the context of a...
Persistent link: https://www.econbiz.de/10010491451
optimizes all the parameters within the model. We employ Lasso and elastic-net penalty functions as regularization approach. The …
Persistent link: https://www.econbiz.de/10010318767
penalization parameter () of a linear quantile lasso regression. The FRM is calculated by taking the average of the penalization …
Persistent link: https://www.econbiz.de/10011663444
quantile lasso regression methods for risk analysis based on NASDAQ data, Yahoo Finance data and some macro variables. The ….quantlet.de with the keyword FRM. The RiskAnalytics package is a convenient tool with the purpose of integrating lasso penalized …
Persistent link: https://www.econbiz.de/10011663447
operator (Lasso) method proposed by Tibshirani (1996) and extended into quantile regression context by Li and Zhu (2008). The …
Persistent link: https://www.econbiz.de/10011580445
simultaneously. We first show the consequences of using Lasso type estimate directly for time series without considering the temporal …
Persistent link: https://www.econbiz.de/10010281503
The paper proposes a data driven adaptive model selection strategy. The selection crite- rion measures economic exante forecasting content by means of trading implied cash flows. Empirical evidence suggests that the proposed strategy is neither exposed to selection bias nor to the risk of...
Persistent link: https://www.econbiz.de/10010271837
The S&P500 or DAX30 are important benchmarks for the financial industry. The first mimics the performance of the major US on the NYSE, AMEX and NASDAQ, while the second does the same for the German Prime Share sector. These and other indices describe different compositions of certain segments of...
Persistent link: https://www.econbiz.de/10011531897
The CRIX (CRyptocurrency IndeX) has been constructed based on approximately 30 cryptos and captures high coverage of available market capitalisation. The CRIX index family covers a range of cryptos based on di erent liquidity rules and various model selection criteria. Details of ECRIX (Exact...
Persistent link: https://www.econbiz.de/10011580429
Crypto-currencies have developed a vibrant market since bitcoin, the rst crypto-currency, was created in 2009. We look at the properties of cryptocurrencies as financial assets in a broad cross-section. We discuss approaches of altcoins to generate value and their trading and information...
Persistent link: https://www.econbiz.de/10011580436