Hello,<div><br></div><div>For my school these, i am doing research to investigate the effect of different variables on the reserve currency shares of different currencies. Before i am working with panel data, i liked to make an OLS estimation on the dollar. So i&#39;m using time series data. I checked the variables for stationarity using the ADF-test, and it seems that the dependent variable is non-stationary along with two explanatory variables. The other 4 explanatory variables are stationary. Since you cannot run regressions with variables of a different integration, i am not sure how to proceed.. I suggest it is not appropriate to just take the first differences of the non-stationary variables?</div>
<div><br>Any help on this topic would be very much appreciated. Thanks in advance.<br>For additional info on the data/research, please do not hesitate to contact me.<br clear="all"><div><br></div>-- <br>Met vriendelijke groeten,<br>
<br>Emiel Denuwelaere<br><br>M: +32 (0)476 56 08 75<br>E: <a href="mailto:emiel.denuwelaere@gmail.com" target="_blank">emiel.denuwelaere@gmail.com</a><br><br>
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