I'm writing a paper about Uncertainty indices like VIX, etc. I already collected all data but it seems that some of the variables got a few or a little more missing data. I have daily and monthly data ready: https://cl.ly/8e1080296b31
What is the appropriate way to handle this case? It does not have to be very fancy as my econometrics background is basic.
If someone goes the extra 3 miles and fill the data will be even greater.