“…These shocks take the form of events such as sudden inventory changes, OPEC's pricing arrangements, conflicts, drilling field discoveries, or credibility of OPEC's intervention in a target zone model (Hammoudeh, 1996). They affect oil prices through oil price expectations (Hawdon, 1987(Hawdon, , 1989Rauscher, 1988;Hammoudeh and Madan, 1995) and through changes in the fundamentals (Hawdon, 1989). Focusing on the latter issue, oil market shocks can indeed alter supply and demand on different markets in the economy (Wirl, 1991); especially, a widespread literature has shown that oil price shocks affect output and inflation (Hamilton, 1983;Cunado and Perez de Garcia, 2005).…”