Çѱ¹°æÁ¦Çк¸ Á¦ 23±Ç, Á¦ 2È£ (2016³â °¡À»)
Yong-Ju Lee
Pages 149-163
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Abstract ( Eng | Kor ) || PDF
- This paper considers a model of contest between two asymmetric
agents in which reputation effects work in different directions. If
David wins, he gains substantial fame, and he has nothing to lose
but his effort even if he loses. By contrast, it is just a natural
outcome for Goliath to win, but if he loses, then he faces
substantial shame. We characterize the conditions for a unique
pure-strategy Nash equilibrium and conduct comparative statics to
examine how efforts and expected payoffs respond to variations
in contest parameters. From this analysis, we understand the
structure of interactions between fame, shame, ability, and effort
in the contest.
- ´ÙÀ°ú °ñ¸®¾ÑÀÇ °æÀï
ÀÌ¿ëÁÖ
º» ³í¹®Àº °æ±âÀÚ°£ÀÇ ÆòÆÇÈ¿°ú°¡ ´Ù¸¥ ¹æÇâÀ¸·Î ÀÛ¿ëÇÏ´Â ºñ´ëĪÀû °æÀïÀ» ¸ðÇüÈÇÑ´Ù. ´É·ÂÀÌ µÚÃÄÁö´Â ´ÙÀÀÇ °æ¿ì, °æÀï¿¡¼ ½Â¸®ÇÏ¸é ¾öû³
¸í¼ºÀ» ¾ò°Ô µÇÁö¸¸ Áö´õ¶óµµ ÀÒÀ» °ÍÀÌ °ÅÀÇ ¾ø´Ù. ¹Ý¸é, °ñ¸®¾ÑÀÇ °æ¿ì, À̱â´Â °ÍÀº ´ç¿¬ÇÑ °á°ú·Î ¿©°ÜÁöÁö¸¸, ¸¸¾à Áö°Ô µÇ¸é ¾öû³ Ä¡¿å¿¡ Á÷¸éÇÏ°Ô
µÈ´Ù. º» ³í¹®Àº ÀÌ·¯ÇÑ ºñ´ëĪÀû »óȲ¿¡¼ À¯ÀÏÇÑ ¼ø¼öÀü·« ³»½¬±ÕÇüÀÌ Á¸ÀçÇÏ°Ô µÇ´Â Á¶°ÇÀ» ±¸ÇÏ°í, ºñ±³Á¤ÇÐÀ» ÅëÇØ ÆĶó¹ÌÅÍÀÇ º¯È¿¡ µû¸¥ ³ë·Â¼öÁØ°ú ±â´ëÈ¿¿ëÀÇ º¯È¸¦ »ìÆ캻´Ù.
ÀÌ·¯ÇÑ ºÐ¼®À» ÅëÇØ ¸í¼º, ´É·Â, Ä¡¿å°ú ³ë·Â¼öÁØ°£ÀÇ »ó°ü°ü°è ±¸Á¶¸¦ Á÷°üÀûÀ¸·Î ÀÌÇØÇÏ°Ô µÈ´Ù.
Á¤¹Î¼ö
Pages 165-197
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Abstract ( Eng | Kor ) || PDF
- Continuous-time Regression with
Nonstationary Error and the Comovement
of Stock Indices
Minsoo Jeong
We study the asymptotic properties of the continuous-time
regression in the presence of nonstatioinary error. Choi, Hu and
Ogaki (2008) have already well studied the case of I(1) processes
in discrete time. However, contrary to I(1) processes, there arise a
variety of situations when the model is in continuous time. In
continuous-time regression, we verify that both the OLS (ordinary
least squares) and GLS (generalized least squares) estimators may
or may not achieve the consistency, depending on the property of
the processes. We establish detailed conditions for the consistency
of the estimators in each case. Furthermore, we apply our
regression model to the stock indices of Korea and the US, to show
that the cointegration or return analysis may not fully characterize
the comovement of the stock indices.
- º» ¿¬±¸¿¡¼´Â ¿¬¼Ó½Ã°£ ȸ±Í¸ðÇü¿¡¼ ¿ÀÂ÷Ç×ÀÌ Á¤»ó¼º(stationarity)À»
°®Áö ¾Ê´Â °æ¿ìÀÇ ÃßÁ¤·®¿¡ ´ëÇØ ºÐ¼®ÇÑ´Ù. ÀÌ»ê½Ã°£ I(1) °úÁ¤ÀÇ °æ¿ì ÀÌ¹Ì Choi, Hu and Ogaki(2008)¿¡¼ ´Ù·ç¾úÁö¸¸, ¿¬¼Ó½Ã°£ ¸ðÇüÀº ´Ü¼øÇÑ
I(1)À» ±âÁØÀ¸·Î ºÐ¼®ÇÑ °á°ú¿Í´Â ´Ù¸£°Ô ¸ðÇüÀÇ Æ¯¼º¿¡ µû¶ó »óÀÌÇÑ
°á°úµéÀÌ ´Ù¾çÇÏ°Ô ³ªÅ¸³´Ù. ¿¬¼Ó½Ã°£ ¸ðÇüÀº ÀÌ»ê½Ã°£ ¸ðÇü°ú´Â ´Þ¸® Á¶°Ç¿¡ µû¶ó OLS(ordinary least squares) ÃßÁ¤·®ÀÌ ÀÏÄ¡¼º(consistency)À» °®±âµµ ÇÏ°í GLS(generalized least squares)
ÃßÁ¤·®ÀÌ ºñÀÏÄ¡¼ºÀ» °®´Â °æ¿ìµµ Á¸ÀçÇÏ°Ô µÇ´Âµ¥, º» ¿¬±¸¿¡¼´Â µÎ ÃßÁ¤·®ÀÌ ÀÏÄ¡¼ºÀ» Áö´Ò Á¶°ÇÀ» °¢°¢ µµÃâÇÏ°í °¢ Á¶°ÇµéÀÇ Àǹ̸¦ »ìÆ캻´Ù.
¶ÇÇÑ Çѱ¹°ú ¹Ì±¹ÀÇ ÁÖ°¡Áö¼ö µ¿Á¶È ºÐ¼®¿¡ º» ¿¬±¸ÀÇ È¸±Í¸ðÇüÀ» Àû¿ëÇÏ¿©, ±âÁ¸ÀÇ °øÀûºÐ(cointegration) ºÐ¼®À̳ª ¼öÀÍ·ü¸ðÇü ºÐ¼®Àº ½Ã°è¿ÀÇ Ãß¼¼ÀûÀÎ ¿¬°ü¼ºÀ» ¼³¸íÇϴµ¥ ÃæºÐÇÏÁö ¾ÊÀ» ¼öµµ ÀÖÀ½À» º¸ÀδÙ.
Àå±ÙÈ£
Pages 199-240
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Abstract ( Eng | Kor ) || PDF
- Investment Shocks in Korea's
Business Cycles
Keunho Jang
This paper reinvestigates the role of investment shocks in
accounting for business cycles based on the model of Justiniano,
Primiceri, and Tambalotti (2011) and analyzes them empirically
using post-2000 Korea's data. Estimation results show that shocks
to marginal efficiency of investment play much more important
roles rather than investment-specific technology shocks reflecting
real factors. Due to frictions such as countercyclical price markup,
shocks to marginal efficiency of investment successfully generate
co-movements between endogenous variables such as output,
consumption, investment and hours, and their impacts on business
cycles are greatly amplified as well. Meanwhile, estimated shocks
to marginal efficiency of investment are correlated with both firms'
financing conditions and financial and foreign exchange market
conditions. Hence, it is inferred that a significant part of business
cycles in Korea is attributal to financial conditions influencing
firms' investments for the post-2000 era.
- º»°í¿¡¼´Â ±âÁ¸ÀÇ °æÇèÀû ¿¬±¸¿¡¼ Á¦ÇÑÀûÀ̶ó°í ¾Ë·ÁÁ® ¿Ô´ø °æ±âº¯µ¿¿¡¼ÀÇ ÅõÀÚÃæ°ÝÀÇ ¿ªÇÒÀ»
Justiniano, Primiceri, and Tambalotti(2011)ÀÇ ¸ðÇü¿¡ ±Ù°ÅÇؼ Àç°ËÁõÇÏ°í 2000³â ÀÌÈÄ Çѱ¹ ÀڷḦ ÅëÇØ
½ÇÁõºÐ¼®À» ÇÏ¿´´Ù. ¸ðÇüÀÇ ÃßÁ¤°á°ú, ½Ç¹°Àû ¿äÀÎÀÇ ÅõÀÚƯÀ¯±â¼úÃæ°Ýº¸´Ù´Â ÅõÀÚÇÑ°èÈ¿À²Ãæ°ÝÀÇ °æ±âº¯µ¿¿¡¼ÀÇ ¿ªÇÒÀÌ Å©°Ô ³ªÅ¸³µ´Ù. °æ±â¿ªÇàÀû
°¡°Ý¸¶Å©¾÷ µî ¸¶Âû¿äÀÎÀ¸·Î ÀÎÇØ ÅõÀÚÇÑ°èÈ¿À²Ãæ°ÝÀº »ý»ê, ¼Òºñ, ÅõÀÚ, ³ëµ¿½Ã°£ µî ³»»ýº¯¼öµéÀÇ °øÇ༺À» Àß ³ªÅ¸³»¸ç µ¿ Ãæ°ÝÀÌ °æ±âº¯µ¿¿¡ ¹ÌÄ¡´Â ¿µÇâ·Âµµ Å©°Ô ÁõÆøµÇ´Â °ÍÀ¸·Î µå·¯³µ´Ù. ÇÑÆí, ÅõÀÚÇÑ°èÈ¿À²Ãæ°ÝÀº
±â¾÷ÀÇ Â÷ÀÔ¿©°Ç, ±ÝÀ¶?¿Üȯ½ÃÀå »óȲ°ú °ü·ÃÀÌ ³ôÀº °ÍÀ¸·Î µå·¯³µ´Ù. µû¶ó¼ 2000³â ÀÌÈÄ ¿ì¸®³ª¶óÀÇ °æ±âº¯µ¿Àº ±â¾÷ÀÇ ÅõÀÚ¿¡ ¿µÇâÀ» ÁÖ´Â ±ÝÀ¶¿©°ÇÀÇ º¯È¿¡ Å©°Ô ±âÀÎÇÑ °ÍÀ¸·Î À¯ÃßÇÒ ¼ö ÀÖ´Ù.
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Pages 241-268
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Abstract ( Eng | Kor ) || PDF
- The Effects of House Price and Household
Debt on Consumption
Gab-Je Jo
This paper empirically investigates the effects of interaction
between house price and household debt on household consumption
in Korea, using macroeconomic data for 2003-2015. I have utilized
the cointegration test, the vector error correction analysis, the
Granger causality test, the impulse response function and the
variance decomposition test. The estimation results showed that,
in the situation of high household debt, there was significant
negative effect of house price on consumption. These results
suggest that ¡®wealth effect¡¯, which means the rise in house price
lift household consumption, is not found when the ratio of
household debt to income is high.
- º» ¿¬±¸¿¡¼´Â 2003-2015³â ±â°£ÀÇ °Å½ÃÀû ½Ã°è¿ ÀڷḦ È°¿ëÇÏ¿© ÁÖÅð¡°Ý°ú °¡°èºÎä°¡ º¹ÇÕÀûÀ¸·Î °¡°è¼Òºñ¿¡ ¹ÌÄ¡´Â Àå´Ü±âÀû ¿µÇâ¿¡
°üÇÏ¿© ½ÇÁõºÐ¼®ÇÏ¿´´Ù. À̸¦ À§ÇØ °øÀûºÐ ºÐ¼®°ú º¤ÅÍ¿ÀÂ÷¼öÁ¤¸ðÇü¿¡ ÀÇÇÑ
Granger Àΰú°ü°è, Ãæ°Ý¹ÝÀÀÇÔ¼ö ¹× ºÐ»êºÐÇغм®À» È°¿ëÇÏ¿´´Ù. ºÐ¼®°á°ú, °¡°èºÎä°¡ ¼Òµæ ´ëºñ ³ôÀº »óȲ¿¡¼´Â ÁÖÅð¡°ÝÀÇ »ó½ÂÀº Àå´Ü±âÀûÀ¸·Î
°¡°è¼ÒºñÀÇ Áõ°¡¸¦ À§Ãà½ÃÅ°´Â ÀÛ¿ëÀ» ÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ÀÌ·¯ÇÑ
ºÐ¼®°á°ú´Â ÁÖÅð¡°ÝÀÇ »ó½ÂÀÌ °¡°è¼Òºñ¸¦ °ßÀÎÇÑ´Ù´Â ¡®ºÎÀÇ È¿°ú¡¯°¡ °¡°èºÎä°¡ ³ôÀº »óȲ¿¡¼´Â ¹ß°ßµÇÁö ¾Ê´Â´Ù´Â ³í°Å¸¦ Á¦°øÇÑ´Ù.
The Korean Journal of Economics, Vol. 23, No. 2 (Autumn 2016)