Synth (version 0.1-5)

fn.V: Loss Function for nested optimization of W and V weights

Description

This is the loss function for the nested optimization of W and V weights used for constructing synthtic control groups according to the methods outlined in Abadie and Gardeazabal (2003) and Abadie, Diamond, Hainmueller (2007) (see references). This function is called by synth automatically, and should not be called manually by a normal user.

Usage

fn.V(variables.v = stop("variables.v missing"), 
X0.scaled = stop("X0.scaled missing"), X1.scaled = stop("X0.scaled missing"), 
Z0 = stop("Z0 missing"), Z1 = stop("Z1 missing"), margin.ipop = 0.0005, sigf.ipop = 5, bound.ipop = 10, ...)

Arguments

variables.v

NA

X0.scaled

NA

X1.scaled

NA

Z0

NA

Z1

NA

margin.ipop

NA

sigf.ipop

NA

bound.ipop

NA

...

NA

Value

• A list object containing the optimization results.

Details

NA

References

Abadie, A. and Gardeazabal, J. (2003) Economic Costs of Conflict: A Case Study of the Basque Country American Economic Review 93 (1) 113--132 http://ksghome.harvard.edu/~.aabadie.academic.ksg/ecc.pdf Abadie, A., Diamond, A., Hainmueller, J. (2007) Synthetic Control Methods for Comparative Case Studies: Estimating the Effect of California's Tobacco Control Program NBER Technical Working Paper no 335 http://www.people.fas.harvard.edu/~jhainm/

See Also

gaps.plot,synth.plot,dataprep,synth.tab

Examples

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