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Record W6983787822

“Nowcasting” de actividad económica de Chile usando indicadores alta frecuencia

2021· other· es· W6983787822 on OpenAlexaboutno aff

Bibliographic record

VenueUniversidad de Chile · 2021
Typeother
Languagees
FieldSocial Sciences
TopicCommunication and COVID-19 Impact
Canadian institutionsnot available
Fundersnot available
KeywordsNowcastingEstimationQuarter (Canadian coin)Real estate
DOInot available

Abstract

fetched live from OpenAlex

Este trabajo evalúa el poder predictivo al aplicar Nowcasting sobre IMACEC para \nanticipar el PIB trimestral y anual, y sobre IPMIN, IPMAN e IAC para anticipar el \nValor Agregado trimestral y anual de las actividades de Minería, Industria y Comercio. \nSe analiza el periodo 2018-2020 tanto en frecuencia anual como trimestral. Para realizar \nNowcasting se emplean tres métodos de benchmarking: método Denton proporcional, \nmétodo Cholette-Dagum proporcional con error AR(1), y método basado en regresión \nChow-Lin. Asimismo, se comparan los resultados con dos estimaciones de expectativas \nobtenidas desde la Encuesta de Expectativas Económicas (EEE). Los resultados muestran que el método Chow-Lin alcanza el menor error cuadrático medio (ECM) al usar el \nIMACEC para anticipar PIB trimestral y para anticipar el VA trimestral y anual de las \nactividades de Minería y Comercio. Mientras que el método Cholette-Dagum posee el \nmenor ECM para anticipar el VA trimestral y anual de Industria, y PIB anual. Al comparar con las estimaciones de la EEE se muestra que los resultados de Nowcasting poseen \nun menor ECM, en especial, en el periodo T4-2019 hasta T4-2020. En términos de puntos \nporcentuales, los agentes pueden refinar sus expectativas en aproximadamente 5 y 2 décimas para la primera y segunda estimación de la EEE para todo el periodo considerado. \nMientras que en el periodo T4-2019 hasta T3-2020, se pueden refinar las expectativas en \n5 y 4 décimas respectivamente. Estos resultados muestran que al realizar Nowcasting se \nobtiene una anticipación confiable de la evolución real de actividad económica antes de \nsu publicación. Además, son factibles de utilizar como un instrumento apropiado para \nque los agentes económicos refinen sus expectativas, en particular, considerando periodos \nde alta turbulencia e incertidumbre económica.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.002
metaresearch head score (Gemma)0.009
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.115
Threshold uncertainty score0.228

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0020.009
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.001
Bibliometrics0.0010.002
Science and technology studies0.0000.000
Scholarly communication0.0020.002
Open science0.0010.001
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0090.001

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.021
GPT teacher head0.331
Teacher spread0.310 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designSimulation or modeling
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations0
Published2021
Admission routes1
Has abstractyes

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