Results 81 to 90 of about 13,873,042 (261)
Australian Economic Review, EarlyView.ABSTRACT Extracting ‘stars’ and ‘gaps’ variables from macroeconomic time series is challenging. We highlight common pitfalls and suggest how to link gap measurement to robust features of existing new Keynesian theories.
Amaranta Canova, Fabio Canova
wiley +1 more source
Simplified Machine Diagnosis Techniques Using 3rd order ARMA Model of Absolute Deterioration Factor
, 2007 In order to diagnose machines accurately, the Kurtosis and Bicoherence methods were utilized. Calculating system parameter distance was also utilized to apply time series data to Autoregressive (AR) model or Autoregressive Moving Average (ARMA) model. In
石井, 康夫 +3 more
core
The brittleness index in hydraulic fracturing [PDF]
, 2015 We present a new definition of a brittleness index which is used as a criterion for candidate selection of rock intervals for hydraulic fracturing. The new index is a combination of material strength parameters and insitu stresses. It was derived from an
Atkinson, C, Papanastsiou, P
core
Pacific Economic Review, EarlyView.ABSTRACT This study investigates the impact of China's recent real estate crisis, stemming from Evergrande's struggles, on the return and risk profiles of US‐listed exchange traded funds (ETFs) tracking Chinese stock market indexes. Analysing 26 funds from February 2, 2018 to December 31, 2024, we first employ a VAR model to assess contagion and ...
Gerasimos Rompotis +2 more
wiley +1 more source
Simplified Machine Diagnosis Techniques Using ARMA Model of Absolute Deterioration Factor
, 2007 In order to diagnose machines accurately, the Kurtosis and Bicoherence methods were utilized. Calculating system parameter distance was also utilized to apply time series data to Autoregressive (AR) model or Autoregressive Moving Average (ARMA) model. In
石井, 康夫 +3 more
core
Monitoring Quality of Mafia‐Connected Accountants
Journal of Accounting Research, EarlyView.ABSTRACT We investigate the monitoring quality of accountants with ties to the Mafia in their role as auditors for “clean” firms—those with no known ties to organized crime. Using a proprietary government database, we identify Italian firms with alleged ties to the Mafia through their executives, directors, or shareholders.
Pietro A. Bianchi +3 more
wiley +1 more source
The Predatory Ability and Intraspecific Interference Response of Arma chinensis to the Larvae of Ectropis grisescens [PDF]
Chaye kexueTo explore the biological control potential of Arma chinensis, a predatory insect, against Ectropis grisescens larvae, the predation and search effect of 4th-5th instar Arma chinensis nymphs and female adults on 3rd-5th instar larvae of Ectropis ...
GUO Shibao, CHEN Junhua, ZHANG Long, LI Feifan, LIU Hongmin, SHI Hongzhong
doaj +1 more source
On the Identification of ARMA Graphical Models
IEEE Transactions on Automatic ControlThe paper considers the problem to estimate a graphical model corresponding to an autoregressive moving-average (ARMA) Gaussian stochastic process. We propose a new maximum entropy covariance and cepstral extension problem and we show that the problem admits an approximate solution which represents an ARMA graphical model whose topology is determined ...
openaire +4 more sources
Asymptotic Theory for a Vector ARMA-GARCH Model, [PDF]
This paper investigates the asymptotic theory for a vector ARMA-GARCH model. The conditions for the strict stationarity, ergodicity, and the higherorder moments of the model are established.
Michael McAleer, Shiqing Ling
core
Criminology, EarlyView.Abstract Research in the United States shows a strong link between right‐wing Christianity and support for law enforcement. Yet, it remains unclear whether this support extends uniformly across contexts, which has important implications for our understanding of public attitudes about police. Integrating insights from group identity theory with research
Christopher H. Seto +3 more
wiley +1 more source