We formulate the problems of finding a "key sector" and a "key group" of sectors in the economy by the hypothetical extraction method (HEM), and derive their analytic solutions that are termed industries' "factor worths". It is shown that the key group of <formula format="inline"><simplemath>"k" ≥ 2</simplemath></formula> sectors is, in...

This paper studies the impact of localization, urbanization, and diversification on regional labor productivity levels and growth. We find substantial effects, accounting for roughly half of the explained variation in the labor productivity differences within the Netherlands in the 1990s....

Industries often promote their interests by arguing that they have a big impact on the rest of the economy. This poses the question of how to measure the importance of an activity. To answer this, the literature often uses (regional) input-output analysis. This paper critically reviews the...

The RAS method is used to update or regionalize a single matrix such that it conforms to new row and column totals. This paper presents a correction of the RAS method (CRAS) that uses cell variation distributions calculated from multiple matrices of different periods or different regions. After...