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Monetary environment and market inefficiency
by Yacine Hammami
International Journal of Monetary Economics and Finance (IJMEF), Vol. 5, No. 1, 2012


Abstract: This paper contends that abundant liquidity in the economy might be an important determinant of market inefficiency. Restrictive monetary periods are characterised by high bank lending growth compared with expansive monetary periods. Therefore, if excess liquidity is a cause of market inefficiency, the latter is expected to come out essentially in restrictive monetary environments. Consistent with this intuition, empirical tests here highlight that expected stock returns in the USA are driven by fundamentals only in expansive monetary phases whereas investor sentiment seems to be the most important driving force in restrictive monetary environments.

Online publication date: Mon, 26-Dec-2011


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