Çѱ¹°æÁ¦Çк¸ Á¦ 21±Ç, Á¦ 1È£ (2014³â º½)

    ¼Ò±Ô¸ð ºÐ±â µ¿ÅÂÀû Àü¸Á¸ðÇü °³¹ß - Çѱ¹, ¹Ì±¹, À¯·ÎÁö¿ª ¹× ÀϺ» °æÁ¦¸¦ ´ë»óÀ¸·Î
    ¹Ú¹«È¯
    Pages 3-41
  • Abstract ( Eng | Kor ) || PDF
    • Developing a Small Scale Quarterly Dynamic Projection Model of Korea, the United States, the Euro Area and Japan Economies
      Muhwan Park


         Reflecting a recent trend in the development of dynamic stochastic general equilibrium (DSGE) models as a macroeconomic analysis tool, this paper aims to construct a global dynamic projection model (DPM) based on a micro-foundation for economic forecasting. In line with this purpose, we developed a small-scale quarterly dynamic projection model of Korea, the United States, the Euro area and Japan economies, in which the key macroeconomic variables were output gaps, inflation rates, short-term interest rate and exchange rates. We also introduced a financial variable in the form of a bank lending attitude variable into the model to allow for financial-real linkages. The model is estimated over the sample period of 2000Q1 to 2012Q4 using Bayesian techniques. The Bayesian estimation model shows that it is useful for short and medium-term forecasting in the sense of ex-post estimates, effective forecasting memory, and root mean squared errors in intra and out of sample forecasts.
    •    º»°í´Â °Å½Ã°æÁ¦ ºÐ¼®Æ²·Î¼­ µ¿ÅÂÀû·È®·üÀû·ÀϹݱÕÇü(DSGE, dynamic stochastic general equilibrium)¸ðÇü °³¹ßÀÇ ÃÖ±Ù Ãß¼¼¸¦ ¹Ý¿µÇÏ¿© ¹Ì½ÃÀû ±âÃÊ(micro-foundations)¿¡ ±â¹ÝÀ» µÐ DSGE È¥ÇÕÇüÅÂÀÇ µ¿ÅÂÀû Àü¸Á¸ðÇü(DPM, dynamic projection model)À» °³¹ßÇϴµ¥ ±× ¸ñÀûÀÌ ÀÖ´Ù. ÀÌ¿¡ µû¶ó Çѱ¹, ¹Ì±¹, À¯·ÎÁö¿ª, ÀϺ» °æÁ¦ÀÇ ÁÖ¿ä °Å½Ã°æÁ¦º¯¼öµéÀÎ »êÃâ·® °¸, ¹°°¡»ó½Â·ü, ÀÌÀÚÀ² ±×¸®°í ȯÀ²¿¡ ´ëÇÑ ¼Ò±Ô¸ð ºÐ±â µ¿ÅÂÀû Àü¸Á¸ðÇüÀ» ±¸ÃàÇÏ¿´´Ù. ¶ÇÇÑ, ±ÝÀ¶-½Ç¹°°£ÀÇ ¿¬°è¸¦ À§ÇÏ¿© ÀºÇà´ëÃâŵµº¯¼ö ÇüÅÂÀÇ ±ÝÀ¶º¯¼ö¸¦ ¸ðÇü¿¡ µµÀÔÇÏ¿´´Ù. º» ¸ðÇüÀº 2000³â 1/4ºÐ±â~2012³â 4/4ºÐ±â Ç¥º»±â°£À» ´ë»óÀ¸·Î º£ÀÌÁö¾ð ±â¹ýÀ» »ç¿ëÇÏ¿© ÃßÁ¤µÇ¾ú´Ù. º£ÀÌÁö¾ð ÃßÁ¤¸ðÇüÀº »çÈÄÀû ÃßÁ¤Ä¡, À¯È¿Àü¸Á½Ã°è, ±×¸®°í Ç¥º» ³» ¿¹Ãø¿¡ ´ëÇÑ Æò¹æÀڽ±ٿ¹Ãø¿ÀÂ÷ °üÁ¡¿¡¼­ ´Ü·Á߱⠿¹Ãø¿¡ À¯¿ë¼ºÀÌ ÀÖ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù.
    Heterogeneous Price Rigidity, Durable Goods, and Optimal Monetary Policy
    Kwang Hwan Kim, Joonseok Oh
    Pages 43-68
  • Abstract ( Eng | Kor ) || PDF
    •    This paper studies optimal interest rate feedback rule in an economy with heterogeneous price rigidity and durable goods. Many literatures document that the price of durable goods is more flexible than that of nondurable goods. Our analysis builds on the New Keynesian framework where nondurables price is sticky and durables price is flexible. Our findings about the optimal interest rate feedback rule in the model can be explained as follows: Firstly, the optimal interest rate feedback rule yields the level of welfare close to that under the Ramsey optimal policy even in this model. In addition, the primary feature of the optimal rule is responding to sticky-price inflation only, rather than aggregate price inflation. This is because there does not exist a trade-off between stabilizing sticky nondurable goods price inflation and following the Ramsey optimal path of each sectoral output. However, responding to aggregate price inflation causes larger welfare loss through the distortion of the relative price of durable goods.
    • ÀÌÁúÀû °¡°Ý °æÁ÷¼º, ³»±¸Àç, ±×¸®°í ÃÖÀû ÅëÈ­ Á¤Ã¥
      ±è±¤È¯, ¿ÀÁؼ®


         ÀÌ ³í¹®Àº ÀÌÁúÀû °¡°Ý °æÁ÷¼º°ú ³»±¸Àç°¡ Á¸ÀçÇÏ´Â °æÁ¦¿¡¼­ÀÇ ÃÖÀû ÀÌÀÚÀ² Á¤Ã¥¿¡ ´ëÇØ ¿¬±¸ÇÑ´Ù. ¸¹Àº ¹®ÇåµéÀÌ ³»±¸ÀçÀÇ °¡°ÝÀÌ ºñ³»±¸ÀçÀÇ °¡°Ýº¸´Ù ´õ À¯µ¿ÀûÀ̶ó°í ¸í½ÃÇÏ°í ÀÖ´Ù. ¿ì¸®ÀÇ ¿¬±¸´Â °¡°Ý °æÁ÷ÀûÀÎ ºñ³»±¸Àç¿Í °¡°Ý À¯µ¿ÀûÀÎ ³»±¸Àç°¡ Á¸ÀçÇÏ´Â ´ºÄÉÀÎÁö¾È ¸ðÇüÀ» ±â¹ÝÀ¸·Î ÇÑ´Ù. ÀÌ ¸ðÇü¿¡¼­ÀÇ ÃÖÀû ÀÌÀÚÀ² Á¤Ã¥¿¡ °üÇÑ ¿ì¸®ÀÇ ¹ß°ßÀº ´ÙÀ½°ú °°´Ù: ù°, ÀÌ ¸ðÇü¿¡¼­µµ ÃÖÀû ÀÌÀÚÀ² Á¤Ã¥À¸·Î ·¥Áö ÃÖÀû Á¤Ã¥ ÇÏ¿¡¼­ÀÇ ÈÄ»ý°ú ±Ù»çÇÑ ¼öÁØÀÇ ÈÄ»ýÀ» ¾òÀ» ¼ö ÀÖ´Ù. ¶ÇÇÑ, ÃÖÀû ÀÌÀÚÀ² Á¤Ã¥ÀÇ ÁÖµÈ Æ¯Â¡Àº Á¾ÇÕ ÀÎÇ÷¹À̼ÇÀÌ ¾Æ´Ï¶ó °æÁ÷ÀûÀÎ °¡°ÝÀÇ ÀÎÇ÷¹À̼ǿ¡¸¸ ¹ÝÀÀÇØ¾ß ÇÑ´Ù´Â °ÍÀÌ´Ù. ÀÌ ÀÌÀ¯´Â °¡°Ý °æÁ÷ÀûÀÎ ºñ³»±¸ÀçÀÇ ÀÎÇ÷¹À̼ÇÀ» ¾ÈÁ¤½ÃÅ°´Â °Í°ú °¢ ¼½ÅÍ º° »ý»ê·®ÀÇ ·¥Áö ÃÖÀû º¯µ¿À» µû¸£°Ô ÇÏ´Â °Í »çÀÌ¿¡ »ó¹Ý°ü°è°¡ ¾ø±â ¶§¹®ÀÌ´Ù. ÇÏÁö¸¸, Á¾ÇÕ ÀÎÇ÷¹À̼ǿ¡ ¹ÝÀÀÇÏ´Â Á¤Ã¥Àº ³»±¸ÀçÀÇ »ó´ë°¡°Ý ¿Ö°îÀ» ÀÏÀ¸ÄÑ Å« ÈÄ»ý ¼Õ½ÇÀ» ¾ß±âÇÑ´Ù.
    ÀÇ·á±Þ¿© º»ÀκδãÁ¦µµÀÇ ºÐ¼®: Á¤¾×ºÎ´ã°ú Á¤·üºÎ´ãÀÇ ÈÄ»ýÈ¿°ú
    ÀÌ¿ëÁÖ
    Pages 69-82
  • Abstract ( Eng | Kor ) || PDF
    • The Analysis on the Cost Sharing System in Korean Medicaid: Copayment or Coinsurance
      Yong-Ju Lee


         The Korean version of Medicaid has been playing an important role in guaranteeing a minimum health care for the underprivileged, but it has experienced severe loss of efficiency due to moral hazard. In order to fix this problem, the Korean government introduced the copayment system to the category-1 recipients who had not paid any money for medical treatment until 2007. But it seems that, even after the reform, the negative problems persist with no significant improvement. Hence, some propose the coinsurance system as an alternative to the current copayment system. This paper analyzes the effects of these cost sharing systems in Medicaid in the frame of standard health insurance, and studies which form of cost sharing system is optimal. Our model concludes that copayment and coinsurance are equivalent in terms of medical treatment, and Medicaid with copayment second-order stochastically dominates Medicaid with coinsurance.
    •    ÀÇ·á±Þ¿©Á¦µµ´Â ÀÇ·áÃë¾à°èÃþ¿¡ ±âº»ÀûÀÎ ÀǷḦ º¸ÀåÇÏ´Â Áß¿äÇÑ ±â´ÉÀ» ¼öÇàÇØ¿À°í ÀÖÁö¸¸, º»ÁúÀûÀ¸·Î ÀÇ·á °ú´ÙÀÌ¿ëÀ¸·Î ÀÎÇÑ È¿À²¼º »ó½ÇÀÇ ¹®Á¦¸¦ ¾È°í ÀÖÀ¸¸ç, ¿À·£ ½Ã°£ ÃàÀûµÈ ºñÈ¿À²¼ºÀÇ °á°ú Á¦µµÀÇ Á¸¸³¸¶Àú À§Çù¹Þ°í ÀÖ´Ù. ÀÌ¿¡ 2007³â 7¿ù Á¤ºÎ´Â ¹®Á¦ÀÇ Ä¡À¯¸¦ À§ÇØ ¹«»óÀÇ·á ¼­ºñ½º¸¦ ¹Þ¾Æ¿À´ø ÀÇ·á±Þ¿© 1Á¾ ¼ö±ÞÀÚ¿¡ ´ëÇؼ­µµ º»ÀκδãÁ¦µµ¸¦ Á¤¾×º»ÀκδãÀÇ ÇüÅ·ΠµµÀÔÇÏ¿´´Ù. ±×·¯³ª Á¦µµ µµÀÔ ÀÌÈÄ¿¡µµ Á¦µµÀÇ ºñÈ¿À²¼º¿¡ ´ëÇÑ ³íÀïÀº Áö¼ÓµÇ°í ÀÖ´Ù. ÀÌ¿¡ ÃÖ±Ù Àü¹®°¡µé »çÀÌ¿¡¼­´Â º»ÀκδãÁ¦µµÀÇ ÇüŸ¦ Á¤¾×ºÎ´ã¿¡¼­ Á¤·üºÎ´ãÀ¸·Î ¹Ù²Ù´Â ¹æ¾ÈÀÌ ÇϳªÀÇ ´ë¾ÈÀ¸·Î ³íÀǵǰí ÀÖ´Ù. Á¦µµ µµÀÔÀÇ È¿°ú¿¡ ´ëÇÑ ÀÌ·ÐÀû·½ÇÁõÀû ¿¬±¸°¡ Àü¹«ÇÑ »óÅ¿¡¼­, º» ³í¹®Àº ÃÖÀûº¸ÇèÀÌ·ÐÀ» ÀÀ¿ëÇÏ¿© ÀÇ·á±Þ¿©Á¦µµ¿¡¼­ Á¤¾×º»Àκδã°ú Á¤·üº»ÀκδãÁ¦°¡ ÀÇ·áÀÌ¿ë¿¡ ¹ÌÄ¡´Â ¿µÇâ°ú ÈÄ»ýÈ¿°ú¸¦ ºñ±³ ºÐ¼®ÇÑ´Ù. ºÐ¼®À» ÅëÇØ, ÀÌ·ÐÀû °üÁ¡¿¡¼­ Á¤¾×º»Àκδã°ú Á¤·üº»ÀκδãÀÇ ÃÖÀûÀÇ·á¼Òºñ¿¡ ¹ÌÄ¡´Â È¿°ú´Â µ¿ÀÏÇÏ°í, Á¤¾×º»Àκδã ÀÇ·á±Þ¿©°¡ Á¤·üº»Àκδã ÀÇ·á±Þ¿©º¸´Ù 2Â÷ È®·ü¿ìÀ§(second-order stochastic dominance)¿¡ ÀÖÀ½À» º¸ÀδÙ.
    The Effects of the Minimum Wage on Poverty in Korea
    Jiwon Seo, Jinook Jeong
    Pages 83-103
  • Abstract ( Eng | Kor ) || PDF
    •    The effects of the minimum wage policy have been controversial in Korea with an increasing gap between the rich and the poor since the Asian financial crisis. Most studies in Korea have focused on the disemployment effects of higher minimum wages and the negative effects of the policy in Korea. This study looks at the possible effects of the minimum wage policy on reducing poverty rates, as measured by the number of people who fall under the defined poverty threshold. We utilize a binary probit model to analyze the Korean Labor and Income Panel Study data and find that a higher hourly minimum wage can reduce the probability of an individual falling under the poverty line.
    • ÃÖÀúÀÓ±ÝÁ¦°¡ ºó°ï¿¡ ¹ÌÄ¡´Â ¿µÇâ
      ¼­Áö¿ø, Á¤Áø¿í


         ¾Æ½Ã¾Æ ¿ÜȯÀ§±â ÀÌÈÄ Çѱ¹ÀÇ ºóºÎ °ÝÂ÷°¡ ½ÉÇØÁö¸é¼­, ÃÖÀúÀÓ±ÝÁ¦µµÀÇ È¿°ú¿Í °ü·ÃÇÑ ¿¬±¸°¡ ¸¹ÀÌ ÀÌ·ç¾îÁ³´Ù. ´ëºÎºÐÀÇ ¿¬±¸´Â ÃÖÀúÀÓ±ÝÁ¦ÀÇ ºÎÁ¤Àû È¿°úÀÎ ½Ç¾÷ÀÇ ¹ß»ý¿¡ ÁýÁߵǾú´Ù. ÀÌ ¿¬±¸´Â ÃÖÀúÀÓ±ÝÁ¦°¡ ºó°ïÃþÀ» ÁÙÀÌ´Â È¿°ú°¡ ÀÖ´ÂÁö¸¦ ºÐ¼®ÇÑ´Ù. 2003-2008 ±â°£ÀÇ Çѱ¹³ëµ¿¿¬±¸¿ø ÆгÎÀÚ·á(KLIPS)¸¦ ÀÓÀÇÈ¿°ú ÆгΠÇÁ·Îºø ¸ðÇüÀ¸·Î ÃßÁ¤ÇÑ °á°ú, Çѱ¹ÀÇ ÃÖÀúÀÓ±ÝÁ¦´Â ºó°ïÃþÀÌ µÉ È®·üÀ» ³·Ãß´Â È¿°ú°¡ ÀÖ¾ú´ø °ÍÀ¸·Î ½ÇÁõµÇ¾ú´Ù.


The Korean Journal of Economics, Vol. 21, No. 1 (Spring 2014)