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Namchok Chimprang on Muck Rack

Namchok Chimprang

As seen in: Nature, MDPI
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Articles

The economic impact of COVID-19: losses and resilience factors

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By Woraphon Yamaka, Namchok Chimprang, Paravee Maneejuk, Roengchai Tansuchat
| Nature Verified
Abstract This study proposes a numerical assessment of the economic loss associated with COVID-19 across 46 countries. We estimate these losses by forecasting each country’s counterfactual GDP, that is, the GDP that would have occurred in the absence of the pandemic, using a hybrid WT–QPSO–ANFIS model. Comparing the forecasted values with actual GDP in 2020–2021 allows us to quantify the economic consequences associated with the pandemic.
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A Lasso and Ridge-Cox Proportional Hazard Model Analysis of Thai Tourism Businesses’ Resilience and Survival in the COVID-19 Crisis

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By Woraphon Yamaka, Supareuk Tarapituxwong, Namchok Chimprang, Piangtawan Polard
| MDPI
5. Empirical Results 5.1. Estimation Results of the Cox Proportional Hazards Model In , we present the coefficients estimated from the Cox regression model using the penalized Lasso and Ridge methodologies. However, these coefficients may not be readily interpretable in their original form. To enhance the interpretability of the results, we applied the exponential function to transform the coefficients into hazard ratios.
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