Stéphane Adjemia (Scylla)
74520e77bf
Allow for lags on endogenous variable in growth option of pac_model.
2019-01-28 11:25:30 +01:00
Stéphane Adjemia (Scylla)
3bc6b34161
Bug fix.
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Be agnostic about the name of the PAC model.
2019-01-07 13:33:08 +01:00
Stéphane Adjemia (Scylla)
c829e7968d
If possible define boundaries for the share of optimizing agents in PAC/NLS.
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The parameter is constrained to be in (0,1) for the following algorithms
- lsqnonlin (without Levenberg-Marquardt)
- fmincon
- annealing
- particleswarm
Other algorithms do not allow the definition of boundaries... We should add a
penality function to the objective for these algorithms.
2018-12-19 16:05:34 +01:00
Stéphane Adjemia (Scylla)
df57bf7eb9
Fixed bug.
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PAC/NLS routine was only working if the PAC model was named `pacman`.
2018-12-19 16:00:57 +01:00
Stéphane Adjemia (Scylla)
11b24a0663
Add a constraint on the share of optimizing agents PAC/Iterative OLS.
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Ensure that the parameter value lies betwwen 0 and 1.
2018-12-19 15:43:36 +01:00
Stéphane Adjemia (Scylla)
c0570ff0af
Fixed typo.
2018-12-19 15:41:32 +01:00
Stéphane Adjemia (Scylla)
38c8462142
If NLS, do not check the ordering of estimated parameters in PAC.
2018-12-12 16:28:19 +01:00
Stéphane Adjemia (Scylla)
d501d6d511
Added interface to lsqnonlin (Mathworks' optimization toolbox) in pac.estimate.nls.
2018-11-29 10:29:55 +01:00
Stéphane Adjemia (Scylla)
e6c716ae9b
Added the possibility to use Gauss-Newton in pac/nls.
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Also added the computation of the covariance matrix of the NLS estimator (using
White and Domovitz approach) and integration test.
2018-11-26 09:53:18 +01:00
Stéphane Adjemia (Scylla)
cf35496c06
Fixed bug in the evaluation of the sum of squared residuals (PAC/NLS).
2018-11-21 15:21:23 +01:00
Stéphane Adjemia (Scylla)
7d2d0d6590
Added the possibility to estimate the share of optimizing agents by iterative OLS (PAC).
2018-11-21 15:07:15 +01:00
Stéphane Adjemian(Charybdis)
2518cd9884
Raise error of an optimization algorithm is not available.
2018-09-13 16:16:07 +02:00
Stéphane Adjemian(Charybdis)
2437d7034e
Give access to more than one optimizer in PAC estimation (NLS).
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Default is to use csminwel optimizer (because it seems to do the job and does
not rely on the Mathworks toolbox).
2018-09-13 16:15:52 +02:00
Stéphane Adjemian(Charybdis)
6815624a6a
Fixed bug.
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Growth neutrality correction was applied twice.
2018-09-12 15:41:07 +02:00
Stéphane Adjemian(Charybdis)
0f3678ec4a
Fixed ordering of variables in error correction term of PAC equation
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PAC equation has to be written as
diff(x) = a0*(xstar(-1)-x(-1)) + a1*diff(x(-1)) + ... + ap*diff(x(-p)) + PAC_EXPECTATION(pacmodelname) + ...;
In the error correction term, a0*(xstar(-1)-x(-1)), we must have the difference
between the target (the trend xstar(-1)) and the level of the endogenous
variable (x(-1)). To ensure stability around the trend, the parameter a0 needs
to be positive.
REMARKS
[1] In the TREND_COMPONENT_MODEL the error correction terms are written in
reverse order, ie as the difference betwwen the level of the endogenous
variable and the trend variable.
[2] In the estimation routine we do not constrain a0 to be positive, but is
would surely help to satisfy this condition in the initial condition.
2018-09-06 22:07:31 +02:00
Stéphane Adjemian(Charybdis)
74ef4d2131
Cosmetic change.
2018-09-06 13:40:43 +02:00
Stéphane Adjemian(Charybdis)
5d8a1feda4
Fixed regular expression.
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Data matrices were not correcty lagged for lags>1. This commit fixes the
inconsistencies (in terms of residuals) between Iterative OLS and NLS routines.
2018-09-06 13:40:27 +02:00
Stéphane Adjemian(Charybdis)
940c970ff3
Use same range in NLS and Iterative OLS.
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The range option is the range of data considered for the right hand side variable.
2018-09-04 09:40:47 +02:00
Stéphane Adjemian(Charybdis)
6e1d06bddc
Display SSR in Iterative OLS.
2018-09-03 18:01:59 +02:00
Stéphane Adjemian(Charybdis)
8b1b1273c3
Fixed correction for growth neutrality.
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Also added the possibility to use an endogenous variable for growth.
2018-09-03 17:57:10 +02:00
Stéphane Adjemian(Charybdis)
fde103d5f4
Removed debugging display.
2018-09-03 17:55:55 +02:00
Stéphane Adjemian(Charybdis)
a207550680
Fixed error correction term.
2018-09-03 17:53:01 +02:00
Stéphane Adjemia (Scylla)
e1b2b80d64
Small efficiency change.
2018-08-29 17:42:49 +02:00
Stéphane Adjemia (Scylla)
d23d1a470b
Added the possibility to estimate PAC_EQUATION with iterative ols and non constant growth.
2018-08-29 17:42:04 +02:00
Stéphane Adjemia (Scylla)
30b34c4323
Small efficiency changes.
2018-08-29 16:15:52 +02:00
Stéphane Adjemia (Scylla)
2b6ee881a4
Efficiency changes.
2018-08-22 11:49:15 +02:00
Stéphane Adjemia (Scylla)
442a70e905
Added missing semicolon.
2018-08-21 21:56:01 +02:00
Stéphane Adjemia (Scylla)
7d6296f7a6
Fixed bug introduced by 42bba08887
.
2018-08-17 21:42:09 +02:00
Stéphane Adjemian(Charybdis)
42bba08887
Make the code robust to the order of declaration of the estimated parameters.
2018-08-15 22:03:33 +02:00
Stéphane Adjemian(Charybdis)
0edebbe5d7
Added Iterative OLS routine for PAC equation.
2018-07-23 16:12:46 +02:00
Stéphane Adjemian(Charybdis)
cd9410644f
Moved PAC estimation routine (NLS).
2018-07-16 16:30:07 +02:00