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Hi Forum Members,

I have converted annual gdp data to quarterly gdp using quadratic conversion and would like to know if this is the better interpolation method.

Thanks

Hi Roland,

It's subjective to say which interpolation method is the best for converting annual GDP data into quarterly frequency.

I'd hazard a guess and say that you'd guess less slack using a method like the Chow-Lin method and a suitable high frequency indicator series (e.g. a production volumes series might be OK, but this would depend on the particular economy).

There's no right/wrong method, but it's also difficult to recommend a best method without knowing the economy of interest.

- Graeme

Thanks Graeme,

The economy I was looking at was Papua New Guinea which is my home country.