The paper by Heider and Hoerova (2009) is ambitious. It studies the interaction between secured interbank lending, unsecured interbank lending, and banks’ portfolio choices. It is motivated by a puzzling empirical observation, namely the “decoupling of secured and unsecured lending rates” in the Great Financial Crisis of 2007–09. The observation made by Heider and Hoerova is that on August 9, 2...

computational intelligence approaches have gradually established themselves as a popular tool for forecasting the complicated financial markets. forecasting accuracy is one of the most important features of forecasting models; hence, never has research directed at improving upon the effectiveness of time series models stopped. nowadays, despite the numerous time series forecasting models propos...

data with high frequency have a particular type of none stationary that is called fractional none stationary. this property causes the emergence of long-term memory in financial time series with high frequency. the existence of long-term memory in cement industry time-series is studied in this paper at first and its presence will be confirmed in a high confidence level by two tests r/s and gph....