Open Source solution for input output tables

So input output tables are an economic cludge format which groups together a bunch of coefficients per country per year (these are specifically country tables) so that you can work out relative inputs and exports of a country.

Last weekend I helped run a hackathon on sustainable finance. We had some great entries and some very smart approaches to bundling transition risk into credit risk.

We got sponsored data by a group called Eora which gave us a set of input-output tables. For my first pass I tried to use pymrio to read them but it I didn't find it that easy so I thought I'd right my own parser which our team might be able to use much easier.

I'm a bit of a hacky Python programmer but all the data scientists in my team would it need it in Python so I thought I'd take advantage of some of the Python 3 features and be more OO in my approach This is what it ended up looking like.

if __name__ == "__main__":    
    filepath_1 = sys.argv[1]
    filepath_2 = sys.argv[2]
    table1 = CountryTable(CountryTableSegment.PrimaryInputs, filepath_1)
    table2 = CountryTable(CountryTableSegment.PrimaryInputs, filepath_2)
    df = table2.append(table1)
    print(df)
   

And returning Pandas DataFrames. Going to make a few updates so that it reads directories and also reads each of the other parts of the country table as well.

You can learning a little about the solution here and check out the code. Trying to finish it within the next few weeks and add to pypi.

https://github.com/elastacloud/input-output-tables

Interested and economist please feel free to get in touch.