This paper examines the validity of the efficient market hypothesis (EMH) for the foreign exchange market of Papua New Guinea (PNG) using data on spot exchange rates for four major foreign currencies during the recent float. The unit root test results indicate that all the four exchange rates are random walks supporting the weak-form of the EMH. However, the Johansen multivariate cointegration test, the Granger causality test and variance decomposition analysis provide evidence that there are long-run as well as short-run predictable relationships among the spot exchange rates, refuting the validity of EMH in its semi-strong form. Further, evidence is found that the Australian dollar plays a vital role in driving the movements of exchange rates in PNG. These results have important implications for participants in the foreign exchange market and policy makers in PNG.
Download Info
To download:
If you experience problems downloading a file, check if you have the
proper application to
view it first. Information about this may be contained
in the File-Format links below. In case of further problems read
the IDEAS help
page. Note that these files are not on the IDEAS
site. Please be patient as the files may be large.
Publisher Info
Paper provided by EconWPA in its series International Trade with number
0406007.
References listed on IDEAS Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.: