Econometric Methods for Modelling Systems With a Mixture of i (1) and i (0) Variables
含 I(1) 与 I(0) 变量的混合系统建模:计量方法AI 解读 ↓
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含 I(1) 与 I(0) 变量的混合系统建模:计量方法AI 解读 ↓
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Summary This paper considers structural models with both I (1) and I (0) variables. The structural shocks associated with either set of variables could be permanent or transitory. We classify the shocks as (P1,P0) and (T1,T0), where P/T distinguishes permanent/transitory, while 1/0 means they are attached to structural equations with either I (1) or I (0) variables as their ‘dependent’ variable. We show that P0 shocks can affect cointegration analysis and provide a formula to compute the permanent component if they are present. Finally, we reformulate a well‐known empirical structural vector autoregression showing the impact of P0 shocks when there are just long‐run parametric and sign restrictions. Copyright © 2015 John Wiley & Sons, Ltd.