Things to consider when ordering
The relative simplicity of input-output multipliers comes at the cost of several
limiting assumptions that produce what are likely to be upper bound estimates. More information about this topic is available here.
The region should include the area supplying a large share of the direct inputs
and employees necessary for the project or event you are studying.
RIMS II multipliers differ from macro-economic multipliers used to assess the
effects of fiscal stimulus on gross national product (GNP).
Differences in industry-specific regional multipliers are not meaningful or appropriate
for use in a national context.