Çѱ¹°æÁ¦Çк¸ Á¦ 29±Ç, Á¦ 2È£ (2022³â °¡À»)
Mingyeong Park, Hyelim Son
Pages 117-142
-
Abstract ( Eng | Kor ) || PDF
- Children's Learning Gap in Cambodia during the COVID-19 Pandemic: The Effect of Targeted Cash Transfer
Mingyeong Park, Hyelim Son
This paper examines the impact of a cash transfer program to poor
households during a COVID-19 outbreak on engagement in
children¡¯s learning activities in Cambodia. The Cambodian
government introduced the IDPoor program to better define target
groups to alleviate poverty in 2006. During the COVID-19
pandemic, the government launched a cash relief program mainly
benefiting the IDPoor households. Using the High Frequency
Phone Survey, we find that receiving cash transfers mitigates the
negative impact of poverty on the education opportunities of children
in poor households during the pandemic. Receiving cash relief is
positively associated with children in poor households engaging
more in education activities, particularly using mobile apps and
also with the likelihood that the children contact their teachers
through the medium of telephone.
- º» ³í¹®Àº COVID-19 ¹ß»ý ÀÌÈÄ ½Ç½ÃÇÑ ºó°ï °¡±¸¿¡ ´ëÇÑ Çö±Ý ÀÌÀü Á¤Ã¥
ÀÌ ÇØ´ç °¡±¸ ¾Æµ¿ÀÇ ÇнÀ È°µ¿ Âü¿©¿¡ ¹ÌÄ¡´Â ¿µÇâ¿¡ ´ëÇØ Ä¯º¸µð¾ÆÀÇ »ç·Ê
¸¦ ÀÌ¿ëÇÏ¿© »ìÆ캸¾Ò´Ù. įº¸µð¾Æ Á¤ºÎ´Â 2006³â ºó°ï ¿ÏÈ Á¤Ã¥ÀÇ ¸ñÇ¥ Áý
´ÜÀ» ´õ Àß Á¤ÀÇÇϱâ À§ÇØ IDPoor ÇÁ·Î±×·¥À» µµÀÔ ÇÏ¿´´Âµ¥, COVID-19
ÆÒµ¥¹Í ÀÌÈÄ, įº¸µð¾Æ Á¤ºÎ´Â ÁÖ·Î IDPoor °¡±¸¸¦ ´ë»óÀ¸·Î Çö±Ý ÀÌÀü Á¤Ã¥
À» ½Ç½ÃÇÏ¿´´Ù. º» ¿¬±¸¿¡¼´Â High Frequency Phone Survey¸¦ ºÐ¼®ÇÏ
¿© Çö±Ý ÀÌÀü Á¤Ã¥ÀÌ ÆÒµ¥¹Í ±â°£ µ¿¾È ºó°ïÀÌ ¾Æµ¿ÀÇ ±³À° ±âȸ¿¡ ¹ÌÄ¡´Â ºÎ
Á¤ÀûÀÎ ¿µÇâÀ» ¿ÏÈÇÑ´Ù´Â °ÍÀ» È®ÀÎÇÏ¿´´Ù. Çö±Ý ÀÌÀüÀ» ¹Þ´Â °ÍÀº ºó°ï °¡
±¸ÀÇ ¾Æµ¿µéÀÌ ±³À° È°µ¿, ƯÈ÷ ¸ð¹ÙÀÏ ¾ÛÀ» ÀÌ¿ëÇÑ È°µ¿¿¡ ´õ ¸¹ÀÌ Âü¿©ÇÏ´Â
°Í°ú ±àÁ¤ÀûÀÎ °ü°è°¡ ÀÖÀ¸¸ç, Àüȸ¦ ÅëÇØ ±³»ç¿Í ¿¬¶ôÇÒ °¡´É¼º°úµµ ±àÁ¤Àû
ÀÎ °ü°è°¡ ÀÖ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù.
ÃÖÇý¸°
Pages 143-174
-
Abstract ( Eng | Kor ) || PDF
- The Study on Korean Service Firm¡¯s Management Practices
Hyelin Choi
As firm¡¯s management and organizational practices are recognized
as one of the important determinants of productivity and firm
performance, the survey on the management practices are
conducted in several countries. This study uses the survey on the
innovation and organizational practices for Korean services firms
and generates management score. The management scores are
generally low in the service sector, in particular regarding targets
among monitoring, targets, and incentives. In terms of
characteristics of firms, the larger, older, and more innovative
firms and foreign-owned and multinational firms show higher
management scores. The simple regression analysis supports that
higher management scores are positively associated with higher
firm performance.
- ±â¾÷ÀÇ Ã¼°èÀûÀÎ °æ¿µ°ü¸®°¡ »ý»ê¼º ¹× ±â¾÷ ¼º°úÀÇ ÁÖ¿ä °áÁ¤ ¿äÀÎÀ¸·Î
Áö¸ñµÇ¸é¼ ½ÇÁõºÐ¼®À» À§ÇÑ »õ·Î¿î ÇüÅÂÀÇ ½ÇÅÂÁ¶»ç°¡ ½ÃµµµÇ°í ÀÖ´Ù. º»
¿¬±¸´Â Çѱ¹ ¼ºñ½º ±â¾÷À» ´ë»óÀ¸·Î ½Ç½ÃÇÑ ¼ºñ½º »ê¾÷ÀÇ Çõ½Å ¹× ±¸Á¶
º¯È¿¡ ´ëÇÑ ½ÇÅÂÁ¶»ç °á°ú¸¦ ÀÌ¿ëÇØ °æ¿µ°ü¸® Áö¼ö¸¦ ÃøÁ¤ÇÏ°í »ê¾÷º° ¹×
±â¾÷ Ư¼ºº°·Î °æ¿µ°ü¸® ÇöȲÀ» ºÐ¼®ÇÏ¿´´Ù. ºÐ¼® °á°ú Çѱ¹ ¼ºñ½º ±â¾÷
ÀÇ °æ¿µ°ü¸® Á¡¼ö´Â »ó´çÈ÷ ³·Àº °ÍÀ¸·Î ³ªÅ¸³µ°í, ƯÈ÷ ¸ð´ÏÅ͸µ, ¸ñÇ¥,
Àμ¾Æ¼ºê ºÎ¹® Áß ¸ñÇ¥ ºÎ¹®ÀÇ Á¡¼ö°¡ ³·Àº °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ±â¾÷ Ư¼ºº°
·Î´Â ±â¾÷ ±Ô¸ð, ¾÷·Â, Çõ½ÅÈ°µ¿ ÁöÃâÀÌ ³ôÀº ±×·ì°ú ¿ÜÅõ±â¾÷ ¹× ´Ù±¹Àû
±â¾÷¿¡¼ °æ¿µ °ü¸® Á¡¼ö°¡ ³ôÀº °ÍÀ¸·Î È®ÀεǾú´Ù. ±×¸®°í ´Ü¼ø ȸ±Í ºÐ
¼®À» ÅëÇØ °æ¿µ°ü¸®°¡ ¼öÀÍ ¹× Çõ½ÅÈ°µ¿¿¡ ±àÁ¤ÀûÀÎ ¿µÇâÀ» ¹ÌÄ¡´Â °ÍÀ»
È®ÀÎÇÏ¿´´Ù.
±è¼±¹Ì, Á¶µÎ¿¬
Pages 175-193
-
Abstract ( Eng | Kor ) || PDF
- Forecasting Crude Oil Prices with Google Trends Data Based on Machine Learning Methods
Seonmi Kim, Dooyeon Cho
Forecasting crude oil prices is an important issue, especially for
Korea which is the importer of crude oil, since fluctuations in
crude oil prices may have a negative effect on the economy. This
study investigates some factors that may cause fluctuations in
crude oil prices with macro variables as well as Google Trends
Data. By employing data on oil demand and supply mainly used in
forecasting models for WTI crude oil prices and trends on keywords
highly searched during a period of a decline in oil prices, it
analyzes whether it can improve forecasting power. We find that
including Google Trends Data, besides data on oil demand and
supply, can improve predictive ability over the sample period
January 2004 to December 2020. To compare predictability in
various models, we employ Adaptive LASSO, Ridge Regression,
Random Forest, and LSTM. The results suggest that the LSTM
model outperforms other models when both structured data and
Google Trends Data are jointly used.
- À¯°¡ÀÇ µî¶ôÀº ¿¡³ÊÁö ¼öÀÔ±¹ÀÎ ¿ì¸®³ª¶ó¿¡ ÀÖ¾î ¸Å¿ì Áß¿äÇÑ »ç¾È Áß ÇÏ
³ªÀ̸ç, À¯°¡ÀÇ º¯µ¿ÀÌ Çѱ¹°æÁ¦¿¡ ¹ÌÄ¡´Â ºÎÁ¤ÀûÀÎ ¿µÇâÀ» ÁÙÀÌ°í, ¾ÈÁ¤Àû
ÀÎ ¿î¿µÀ» À§ÇØ À¯°¡¸¦ ¿¹ÃøÇÏ´Â °ÍÀº Áß¿äÇÏ´Ù. º» ¿¬±¸¸¦ ÅëÇØ °Å½Ã°æÁ¦
º¯¼ö ¿Ü¿¡µµ À¥ °Ë»ö¾î ±â¹ÝÀÇ Google Trends Data¸¦ ÀÌ¿ëÇÏ¿© À¯°¡
µî¶ô¿¡ ¿µÇâÀ» ÁÖ´Â ¿äÀÎÀ» ºÐ¼®ÇÏ°íÀÚ ÇÑ´Ù. WTI À¯°¡ ¿¹Ãø ¸ðÇü¿¡¼ ¼®
À¯ ¼ö¿ä ¹× °ø±Þ °ü·Ã ¼³¸íº¯¼ö¸¦ È°¿ëÇÑ ¸ðÇüÀÇ ¿¹Ãø·Â°ú À¯°¡ Ç϶ô±â µ¿
¾È ºóµµ°¡ ³ôÀº ´Ü¾îÀÇ °Ë»ö¾î Ãß¼¼ º¯È·®À» Ãß°¡ÇÑ ¸ðÇüÀÇ ¿¹Ãø·ÂÀ» ºñ
±³ÇÏ¿´À» ¶§, °Ë»ö¾î Ãß¼¼¸¦ Ãß°¡ÇÑ ¸ðÇüÀÇ ¿¹Ãø·ÂÀÌ °³¼±µÇ´ÂÁö¸¦ ºÐ¼®ÇÏ
¿´´Ù. º» ¿¬±¸¿¡¼´Â 2004³â 1¿ùºÎÅÍ 2020³â 12¿ù±îÁöÀÇ µ¥ÀÌÅ͸¦ ÀÌ
¿ëÇÏ¿© WTI À¯°¡ ¿¹Ãø¿¡ ¿µÇâÀ» ÁÖ´Â ¼®À¯ °ø±Þ ¹× ¼ö¿ä º¯¼ö ÀÌ¿Ü¿¡
Google Trends °Ë»ö¾î Ãß¼¼¸¦ Ãß°¡ÇÔÀ¸·Î½á ¿¹Ãø·ÂÀ» ³ôÀÏ ¼ö ÀÖÀ½À»
º¸¿´´Ù. WTI À¯°¡ ¿¹Ãø ¸ðÇüÀÇ ¿¹Ãø·ÂÀ» ºñ±³Çϱâ À§ÇØ Adaptive
LASSO, Ridge Regression, Random Forest ¸ðÇü ÀÌ¿Ü¿¡ ÃÖ±Ù
°¡°Ý ¿¹Ãø¸ðÇü¿¡¼ ¸¹ÀÌ È°¿ëµÇ°í ÀÖ´Â LSTM ¾Ë°í¸®ÁòÀ» Àû¿ëÇÑ °á°ú,
Á¤Çüµ¥ÀÌÅ͸¸ ÀÌ¿ëÇÑ ¸ðÇüÀÇ ¿¹Ãø·Â¿¡ ºñÇÏ¿© Google Trends Data¸¦
ÇÔ²² ÀÌ¿ëÇÑ ¸ðÇüÀÇ ¿¹Ãø·ÂÀÌ °³¼±µÈ´Ù´Â Á¡À» º¸¿´´Ù.
The Korean Journal of Economics, Vol. 29, No. 2 (Autumn 2022)