विधियों की तुलना करें
चुनी हुई विधियों की आमने-सामने समीक्षा करें; भिन्नता वाली पंक्तियाँ रेखांकित हैं।
| Location Quotient× | शिफ्ट-शेयर इंस्ट्रूमेंटल वेरिएबल (बार्टिक इंस्ट्रूमेंट)× | |
|---|---|---|
| क्षेत्र≠ | अर्थशास्त्र | कारणात्मक अनुमान |
| परिवार≠ | Process / pipeline | Regression model |
| उद्भव वर्ष≠ | 1960 | 2020 |
| प्रवर्तक≠ | Developed in regional science; codified by Walter Isard | Bartik (1991); identification framework by Goldsmith-Pinkham, Sorkin & Swift (2020) and Borusyak, Hull & Jaravel (2022) |
| प्रकार≠ | Descriptive index of relative regional concentration | Instrumental-variable design |
| मौलिक स्रोत≠ | Isard, W. (1960). Methods of Regional Analysis: An Introduction to Regional Science. Cambridge, MA: MIT Press. ISBN: 9780262090032 | Goldsmith-Pinkham, P., Sorkin, I. & Swift, H. (2020). Bartik Instruments: What, When, Why, and How. American Economic Review, 110(8), 2586–2624. DOI ↗ |
| उपनाम | LQ, Coefficient of Localization, Regional Specialization Ratio | Bartik instrument, shift-share instrument, Shift-Share Araç Değişkeni (Bartik Instrument) |
| संबंधित≠ | 3 | 5 |
| सारांश≠ | The location quotient (LQ) is a simple descriptive index that measures how concentrated an industry is in a region relative to a larger reference area, usually the nation. It is the ratio of the industry's share of local employment (or output) to its share of national employment. An LQ above one means the region is more specialized in that industry than the nation as a whole; an LQ below one means it is under-represented. | The shift-share instrumental variable, widely known as the Bartik instrument, is a causal-inference strategy that builds an instrument by interacting national or sector-level shocks (the shifts) with local composition weights (the shares). Its modern identification framework was set out by Goldsmith-Pinkham, Sorkin and Swift (2020) and Borusyak, Hull and Jaravel (2022). |
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