Breaking trend, Lagrange multiplier test statistic and the presence of a unit root in the Brazilian gross domestic product

Ana Luisa Abras, Braulio Borges and Rodrigo Sekkel

Applied Economics Letters, 2004, vol. 11, issue 6, 361-364

Abstract: Standard unit root tests provided mixed evidence on the stochastic behaviour of the Brazilian gross domestic product series. This study uses the minimum Lagrange multiplier statistic suggested by Lee and Strazicich to test for the presence of a unit root with two endogenously determined structural changes. Contrary to previous works utilizing endogenous break points, the authors were not able to reject the null of unit root.

Date: 2004
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DOI: 10.1080/1350485042000228196

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