手法を比較

	Input-Output Analysis	Shift-Share Analysis
分野	経済学	経済学
系統	Process / pipeline	Process / pipeline
提唱年	1936	1960
提唱者	Wassily Leontief	Edgar S. Dunn (Daniel Creamer credited with early use)
種類	Linear inter-industry accounting and impact model	Descriptive decomposition of regional growth
原典	Leontief, W. W. (1936). Quantitative input and output relations in the economic system of the United States. The Review of Economics and Statistics, 18(3), 105–125.	Dunn, E. S. (1960). A statistical and analytical technique for regional analysis. Papers of the Regional Science Association, 6(1), 97–112.
別名	Leontief Model, Inter-Industry Analysis, I-O Analysis, Input-Output Model	Shift-Share Decomposition, SSA, Esteban-Marquillas Shift-Share, Regional Shift-Share
関連	4	3
概要	Input-output analysis is a quantitative framework for representing the interdependence between the industries of an economy, introduced by Wassily Leontief in 1936. It records the flows of goods and services between sectors in a transactions table, derives fixed technical coefficients describing how much each industry buys from every other industry per unit of output, and inverts the resulting linear system to trace how an exogenous change in final demand ripples through the entire production structure.	Shift-share analysis is a descriptive technique that decomposes the change in a regional variable — most often sectoral employment — into three additive components: the part attributable to overall national growth, the part attributable to the region's industry mix, and the part attributable to the region's own competitive performance. Formalized by Edgar Dunn in 1960, it answers whether a region grew because the national economy grew, because it specializes in fast-growing industries, or because its industries outperformed (or underperformed) their national counterparts.