Résumé : La relation d’arbitrage inflation-activité réelle a progressivement retenu l’attention des chercheurs depuis l’étude de Phillips (1958). Pourtant, même si, dans le nouveau cadre keynésien d’analyse (NKPC), une quasi-résurrection de la courbe de Phillips a été entrevue,...

In this paper we consider a Lagrange Multiplier-type test (LM) to detect change in the mean of time series with heteroskedasticity of unknown form. We derive the limiting distribution under the null, and prove the consistency of the test against the alternative of either an abrupt or smooth...

In this paper we consider a Lagrange Multiplier-type test (LM) to detect change in the mean of time series with heteroskedasticity of unknown form. We derive the limiting distribution under the null, and prove the consistency of the test against the alternative of either an abrupt or smooth...

In this paper we consider a Lagrange Multiplier-type test (LM) to detect change in the mean of time series with heteroskedasticity of unknown form. We derive the limiting distribution under the null, and prove the consistency of the test against the alternative of either an abrupt or smooth...