In response to the COVID-19 pandemic, G7 central banks have launched asset purchase programs in anticipation of an increase in government bond offerings to finance ballooning fiscal deficits. As the volume of government bonds owned by private investors is not expected to rise during the current...

Although many macroeconomic time series are assumed to follow nonlinear processes, nonlinear models often do not provide better predictions than their linear counterparts. Furthermore, such models easily become very complex and difficult to estimate. The aim of this study is to investigate...