In Choi
Dados Biográficos
| ID | 9613285 |
|---|---|
| NOME | In Choi |
| PRENOMES | In |
| SOBRENOME | Choi |
| ASSINATURA | CHOI I |
| AFILIAÇÕES | Sogang University |
| ORCID | 0000-0002-5115-5171 |
| VERIFICADO | Sim |
| TOTAL DE OBRAS | 5 |
| TOTAL DE CITAÇÕES | 0 |
| TOTAL COMO AUTOR | 5 |
| TOTAL COMO EDITOR | 0 |
| PRIMEIRO ANO DE PUBLICAÇÃO | 2001 |
| ANO MAIS RECENTE DE PUBLICAÇÃO | 2023 |
| ÍNDICE H | 0 |
Does climate change affect economic data
This paper derives the seasonal factors from the US temperature, gasoline price, and fresh food price data sets using the Kalman state smoother and the principal component analysis. Seasonality in this paper is modeled by the autoregressive process and added to the random component of the time series. The derived seasonal factors show a common feature: their volatilities have increased over the last four decades. Climate change is undoubtedly ref…
Cross-sectional quasi-maximum likelihood and bias-corrected pooled least squares estimators for short dynamic panels
Differencing versus nondifferencing in factor‐based forecasting
This paper studies performance of factor‐based forecasts using differenced and nondifferenced data. Approximate variances of forecasting errors from the two forecasts are derived and compared. It is reported that the forecast using nondifferenced data tends to be more accurate than that using differenced data. This paper conducts simulations to compare root mean squared forecasting errors of the two competing forecasts. Simulation results indicat…
Risk Factors for Internet Gaming Disorder
Background : Understanding the risk factors associated with Internet gaming disorder (IGD) is important to predict and diagnose the condition. The purpose of this study is to identify risk factors that predict IGD based on psychological factors and Internet gaming characteristics; Methods : Online surveys were conducted between 26 November and 26 December 2014. There were 3568 Korean Internet game users among a total of 5003 respondents. We ident…
Unit root tests for panel data
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Unit root tests for panel data
Risk Factors for Internet Gaming Disorder
Background : Understanding the risk factors associated with Internet gaming disorder (IGD) is important to predict and diagnose the condition. The purpose of this study is to identify risk factors that predict IGD based on psychological factors and Internet gaming characteristics; Methods : Online surveys were conducted between 26 November and 26 December 2014. There were 3568 Korean Internet game users among a total of 5003 respondents. We ident…
Differencing versus nondifferencing in factor‐based forecasting
This paper studies performance of factor‐based forecasts using differenced and nondifferenced data. Approximate variances of forecasting errors from the two forecasts are derived and compared. It is reported that the forecast using nondifferenced data tends to be more accurate than that using differenced data. This paper conducts simulations to compare root mean squared forecasting errors of the two competing forecasts. Simulation results indicat…
Cross-sectional quasi-maximum likelihood and bias-corrected pooled least squares estimators for short dynamic panels
Does climate change affect economic data
This paper derives the seasonal factors from the US temperature, gasoline price, and fresh food price data sets using the Kalman state smoother and the principal component analysis. Seasonality in this paper is modeled by the autoregressive process and added to the random component of the time series. The derived seasonal factors show a common feature: their volatilities have increased over the last four decades. Climate change is undoubtedly ref…
Computer Science (3 obras) · Econometrics (3 obras) · Mathematics (3 obras) · Monetary Policy and Economic Impact (3 obras) · Statistics (3 obras) · Engineering (2 obras) · Market Dynamics and Volatility (2 obras) · Aeronautics (1 obras) · Autoregressive model (1 obras) · Clinical Psychology (1 obras)