Metodbevispost

Herfindahl Diversification Index

The Herfindahl diversification index and its entropy cousin turn a firm's spread across businesses into a single continuous number, with the decisive advantage that the entropy form can be cleanly split into related and unrelated diversification. The Herfindahl-based measure is one minus the sum of squared segment revenue shares; the entropy measure, introduced for diversification by Jacquemin and Berry in 1979, is the share-weighted sum of the logged inverse shares. Jacquemin and Berry's key contribution was showing that total entropy decomposes additively into within-industry-group (related) and between-group (unrelated) components. Palepu's 1985 study applied this entropy decomposition to strategic management, finding that related diversification was associated with superior profit growth and giving the field an objective, replicable alternative to categorical schemes.

Sources recorded, not reviewed

Källpost

Citat kopierade ordagrant från metodens källpost. Ingen verifiering på källnivå härleds från dem.

Herfindahl and Entropy Measures of Corporate Diversification

Taxonomisk metodpost · process-pipeline / strategic-management

Öppna fullständig metod

Kuraterade påståenden

Påståenden lagrade i bevisloggen, var och en med sin egen bedömning.

Inga kuraterade påståenden ännu

Denna vy hittar inte på en påståendebedömning när loggen saknar en.

Relaterade metoder

Genererade från metodgrafen och visade som maskinföreslagna relationer – inga bevispåståenden härleds.

Same method familyDiversification-Performance Analysis (Rumelt Categories)machine-suggested · Relational suggestion, not evidence.Same method familyMerger and Acquisition Performance Event Studymachine-suggested · Relational suggestion, not evidence.Used in the same domainTobin's Q Firm Value Analysismachine-suggested · Relational suggestion, not evidence.