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اقتصاد::
متغیر توصیفی
In other words, since this model requires time-series data when the dependent variable is the interest rate followed by explanatory variables such as inflation rate and commodity prices, which are in most of the cases non-stationary, the problem of spurious regression might be highly possible.
The Durbin-Watson (DW) test is valid under the assumptions that regression models include a constant, only the serial correlation of the first order is presented, and there are no lagged dependent variables as explanatory variables.
Since each variable in a stationary VAR has a time invariant mean, and limits it causes, so that the effect of a shock to any one of the explanatory variables must expire in time so that the dependant variable can revert to its mean.
Due to the volatility of commodity prices as explanatory variables, series can be assumed to be deterministic; therefore a traditional impulse response would be more relevant.
Therefore, variance decompositions determine how much of the forecast error variance of a given variable is explained by innovations to each explanatory variable.
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عمومی::
متغیر توضیحی
There are multiple forms of interaction related to the variable to be explained, the explanatory variables or the unobserved
We will illustrate our presentation with localised modelling of the unemployment rate, using a selection of explanatory variables that describe the characteristics of the labour force, the economic structure, the labour supply and the geographic neighbourhood.
It can nonetheless serve as an explanatory variable in the models presented in this document.
If the model omits an explanatory variable spatially correlated to the variable of interest, then omitted variable bias is said to occur.
It is based on the idea that explanatory variables can be the same and yet not have the same effect at all points.
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