mario.calc_e(E, X)

Calculate the e environmental transaction coefficients matrix.

\[e = E\,\operatorname{diag}(X)^{-1}\]

Parameters:

• E (pandas.DataFrame) – E environmental transaction flows matrix.

• X (pandas.DataFrame) – X total production vector.

Returns:

e environmental transaction coefficients matrix.

Return type:

pandas.DataFrame

Notes

Inverse production is computed elementwise. A zero production entry has inverse zero, so the corresponding column is set to zero.