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COMMON STOCHASTIC TRENDS: EVIDENCE FROM THE LONDON METAL EXCHANGE
Author(s) -
Agbeyegbe Terence D.
Publication year - 1992
Publication title -
bulletin of economic research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.227
H-Index - 29
eISSN - 1467-8586
pISSN - 0307-3378
DOI - 10.1111/j.1467-8586.1992.tb00540.x
Subject(s) - cointegration , univariate , economics , econometrics , unit root , multivariate statistics , financial economics , statistics , mathematics
Recent evidence from cointegration theory points towards the efficiency of the London Metal Exchange. We show that on theoretical grounds this evidence could be misleading. We also conduct multivariate and univariate unit roots tests on prices of three different metals, namely: copper, lead and zinc. The price data are seasonal and unadjusted quarterly data from the London Metal Exchange and they cover the period from 1972.1–1987.4. The evidence presented here supports the presence of common stochastic trends in metal price movements.