NoteAbout the Concept of “Net Multipliers”
针对Oosterhaven和Stelder提出的净乘数存在比率不稳定的问题，提出基于列昂惕夫逆矩阵解释的新净乘数，其等于普通乘数减一，且不受冲击规模影响。
Net multipliers, as introduced by Oosterhaven and Stelder (2002) accept outputs as entries instead of final demand. They are found by multiplying ordinary multipliers by the final demand ratio over the sector’s output. This pragmatic solution suffers from ratio instability over time. The alternative net multipliers proposed here are based on the interpretation of the Leontief inverse matrix for the effects generated at each round. The new solution is not sensitive to the size of impacts. Now net multiplier is equal to the corresponding ordinary multiplier minus one, and the ordering of multipliers is unchanged.