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Whenever the sign of the parameters are known of an econometric model, usual twosided tests are no longer appropriate. In this situation, we propose a distancebased onesided Wald test, a likelihood based test, to test onesided alternative. Monte Carlo simulations are conducted to compare power properties of the proposed test with their respective twosided counterparts. This text emphasizes the use of distancebased onesided concepts in testing higher order autocorrelation in the context of linear as well as dynamic regression models.
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