db.bs

For the standalone function, see mario.calc_bs().

Calculate activity-by-commodity direct-output coefficients from supply flows.

\[b_s=\operatorname{diag}(X_a)^{-1}S\]

Inputs#

S: activity-by-commodity supply flows.

Xa: activity production, indexed like S.index.

Result#

Activity nodes on rows and commodity nodes on columns.

Calculation details#

This normalizes rows by activity production. It differs from the supply coefficient matrix s. Zero production gives a zero row.

Example#

import mario

db = mario.load_test("SUT", tech_assumption="IT")
result = db.resolve("bs")
# Dotted access requests the same block:
result = db.bs

Use resolve for scenario selection and recomputation options. Existing targets are reused. The other SUT equations are listed in Resolvable Matrices and Blocks.