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Quasi-Experimental Shift-Share Research Designs [PDF]
The Review of Economic Studies, 2021 Abstract Many studies use shift-share (or “Bartik”) instruments, which average a set of shocks with exposure share weights. We provide a new econometric framework for shift-share instrumental variable (SSIV) regressions in which identification follows from the quasi-random assignment of shocks, while exposure shares are allowed to be ...
Borusyak, Kirill +2 more
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Shift-Share Designs: Theory and Inference [PDF]
SSRN Electronic Journal, 2018 Abstract We study inference in shift-share regression designs, such as when a regional outcome is regressed on a weighted average of sectoral shocks, using regional sector shares as weights. We conduct a placebo exercise in which we estimate the effect of a shift-share regressor constructed with randomly generated sectoral shocks on ...
Adão, Rodrigo +2 more
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A New Shift‐Share Method [PDF]
Growth and Change, 2012 AbstractShift‐share analysis is a decomposition technique widely used in regional studies to quantify an industry‐mix effect and a competitive effect on the growth of regional employment (or any other relevant variable) relative to the national average. This technique has always been subject to criticism for its lack of theoretical basis.
Artige, Lionel, Van Neuss, Leif
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Shift-Share Instruments and the Impact of Immigration [PDF]
SSRN Electronic Journal, 2018 A large literature exploits geographic variation in the concentration of immigrants to identify their impact on a variety of outcomes. To address the endogeneity of immigrants' location choices, the most commonly-used instrument interacts national inflows by country of origin with immigrants' past geographic distribution.
Jaeger, David +2 more
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A Practical Guide to Shift-Share Instruments
SSRN Electronic JournalA recent econometric literature shows two distinct paths for identification with shift-share instruments, leveraging either many exogenous shifts or exogenous shares. We present the core logic of both paths and practical takeaways via simple checklists.
Borusyak, Kirill +2 more
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Straightening up shift-share analysis [PDF]
The Annals of Regional Science, 2003 Introduced in 1960, shift-share analysis has been widely applied in regional science with frequent dispute over its efficacy and accuracy. During the 1970s and 1980s, inherent shortcomings of the traditional formulation were criticised by a number of workers while others attempted to circumvent the problems by extending the model.
Wadley, David, Smith, Phillip
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An Application of the Bishop-Simpson Method: A Shift-Share Variant [PDF]
Journal of the Northeastern Agricultural Economics Council, 1978 The Bishop-Simpson model, a variant of the traditional shift-share approach, is utilized for investigation of the development of the southern New Hampshire regional economy over time. Emphasis is placed on the strengths of the new technique in counteracting some of the limitations of traditional shift-share analyses.
Lindsay, Bruce E., Martin, Susan E.
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Overidentification in Shift-Share Designs
This paper studies the testability of identifying restrictions commonly employed to assign a causal interpretation to two stage least squares (TSLS) estimators based on Bartik instruments. For homogeneous effects models applied to short panels, our analysis yields testable implications previously noted in the literature for the two major available ...
Hahn, Jinyong +3 more
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Global Implementation Research and ApplicationsAbstractHealthcare systems challenged by chronic workforce shortages use task shifting and task sharing as tools to transfer certain services from providers with a high skill base to providers typically with fewer skills or qualifications. The World Health Organization’s global guidelines on task shifting advised countries to develop regulatory and ...
Shukanto Das, Liz Grant, David Weller
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Shift-Share Designs in Political Science
Shift-share designs are gaining popularity in political science. This article introduces what shift-share designs are, reviews their application in the literature, synthesizes recent methodological developments, and discusses their potential utility in the field.
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