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RATS

CATS

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  CATS - °øÀûºÐ(Cointegration) ºÐ¼®À» À§ÇÑ RATSÀÇ Ãß°¡ ¸ðµâ

CATS´Â RATS ¼ÒÇÁÆ®¿þ¾î¿Í ÇÔ²² »ç¿ëÇÒ ¼ö ÀÖ´Â Ãß°¡ ¸ðµâ·Î °øÀûºÐ(Cointegration) ºÐ¼® ÇÁ·Î½ÃÁ®µéÀ» Á¦°øÇÕ´Ï´Ù. CATS´Â ÄÚÆæÇÏ°Õ ´ëÇÐÀÇ Jonathan G. Dennis, Katarina Juselius, Søren Johansen °ú Henrik Hansen µî¿¡ ÀÇÇØ °³¹ßµÇ¾ú½À´Ï´Ù.

CATS´Â ¿©·¯ºÐÀÇ µ¥ÀÌÅ͸¦ ºÐ¼®ÇÏ°í °øÀûºÐ ¸ðÇüÀ» ¼±ÅÃÇÏ°í °ËÁõ¿¡ ÇÊ¿äÇÑ ´Ù¾çÇÑ ÅøµéÀ» Á¦°øÇÕ´Ï´Ù. ÀÌ ¼ÒÇÁÆ®¿þ¾î´Â ´ëºÎºÐ ¸Þ´º ¹× ´ÙÀ̾ó·Î±× ¹æ½ÄÀ¸·Î »ç¿ëÇÒ ¼ö ÀÖ¾î »ç¿ëÀÌ Æí¸®ÇÕ´Ï´Ù. Ãʱ⠼³Á¤ ÆÄÀÏÀ» ¸ÕÀú ¸¸µé Çʿ䰡 Àִµ¥, ÀÌ ÆÄÀÏÀº ¿©·¯ºÐÀÇ µ¥ÀÌÅÍ¿Í »ùÇà ±â°£À» Á¤ÀÇÇϰí CATS ÀýÂ÷µéÀ» ½ÇÇàÇÕ´Ï´Ù. ÀÌ ÆÄÀÏÀ» RATS¿¡¼­ ½ÇÇàÇÕ´Ï´Ù. ÀÌ ¶§, CATS ¸Þ´º¿¡¼­ ÇÊ¿äÇÑ ¸í·ÉµéÀ» ¼±ÅÃÇϸç, CATS´Â ÇÊ¿äÇÑ ÀÔ·ÂÀÌ ÀÖÀ» °æ¿ì »ç¿ëÀÚ°¡ ³Öµµ·Ï ¿ä±¸ÇÒ °ÍÀÔ´Ï´Ù. ½ÇÁõ ¿¹Á¦µé¿¡ ´ëÇÑ »ùÇà µ¥ÀÌÅÍ¿Í ¼³Á¤ ÆÄÀϵéÀ» ÇÔ²² Á¦°øÇÏ¿© ÇÁ·Î±×·¥ »ç¿ë°ú ÀÌÇØ¿¡ µµ¿òÀÌ µÇµµ·Ï ÇÏ¿´½À´Ï´Ù.

 

CATS ±¸¸Å½Ã Á¦°øµÇ´Â ³»¿ë

CATS ÆÐŰÁö´Â CATS ÇÁ·Î½ÃÁ®µéÀ» ´ãÀº CD¿Í °øÀûºÐ VAR ¸ðÇü¿¡ ´ëÇÑ °è·®°æÁ¦ÇÐ ¼³¸í°ú °á°ú ÇØ¼® ¹æ¹ý¿¡ ´ëÇÑ ¼³¸íÀ» ´ãÀº 200ÆäÀÌÁö ºÐ·®ÀÇ ¸Å´º¾óÀ» Á¦°øÇÕ´Ï´Ù. ÇÁ·Î±×·¥ÀÇ ¸ðµç ±â´Éµé¿¡ ´ëÇØ ¿¹Á¦¸¦ ¼ö·Ï ÇÏ¿´°í, ¸Å´º¾ó ¿ª½Ã CATSÀÇ ¼öÇÐÀû À̷п¡ °üÇÑ ºÎ·ÏÀ» Á¦°øÇϰí ÀÖ½À´Ï´Ù.

 

CATS ±¸¸Å½Ã Á¦°øµÇ´Â ³»¿ë

CATS ÆÐŰÁö´Â CATS ÇÁ·Î½ÃÁ®µéÀ» ´ãÀº CD¿Í °øÀûºÐ VAR ¸ðÇü¿¡ ´ëÇÑ °è·®°æÁ¦ÇÐ ¼³¸í°ú °á°ú ÇØ¼® ¹æ¹ý¿¡ ´ëÇÑ ¼³¸íÀ» ´ãÀº 200ÆäÀÌÁö ºÐ·®ÀÇ ¸Å´º¾óÀ» Á¦°øÇÕ´Ï´Ù. ÇÁ·Î±×·¥ÀÇ ¸ðµç ±â´Éµé¿¡ ´ëÇØ ¿¹Á¦¸¦ ¼ö·Ï ÇÏ¿´°í, ¸Å´º¾ó ¿ª½Ã CATSÀÇ ¼öÇÐÀû À̷п¡ °üÇÑ ºÎ·ÏÀ» Á¦°øÇϰí ÀÖ½À´Ï´Ù.

 

CATSÀÇ ÁÖ¿ä ±â´Éµé


»õ·Î¿î °è·® °æÁ¦ÇÐ(Econometrics) ±â´Éµé

• Bartlett small-sample correction of the tests for the cointegrating rank and hypotheses on Beta.

• A new ¡°CATSmining¡± automated model-selection procedure.

• Estimation and hypothesis testing of the I(2) model, including testing hypotheses on the multi-cointegrating relations and the I(1) relations among the system variables

• Estimation of structural moving average models.

• System reduction tests for lag length determination.

• Missing observations in data allowed.

• Updated recursive estimation routine includes new tests for eigenvalue fluctuation, constancy of the cointegrating space and the log-likelihood function.

• Allows for ¡°backwards¡± recursion for investigating parameter constancy over the beginning of the sample.

• For most model specifications, CATS now reports the correct critical values and p-values for the rank test. For other models, you can simulate the critical values using a built-in procedure.

• Includes a procedure for estimation and identification of structural moving average models.

 

»õ·Î¿î ÀÎÅÍÆäÀ̽º ±â´Éµé

• All-new user interface, with separate menus for various categories of operations, including I(1) analysis, I(2) analysis, graphics, and automated tests.

• All model settings, including the deterministic terms and lag structure, are menu-controlled, so you can now change the underlying VAR model without quitting and re-starting CATS.

• All procedure settings, such as maximum number of iterations and convergence criteria for the switching algorithms, screen output format, and more, can be set via a "Preferences" dialog box.

• The estimated model can now be exported as a RATS ¡°MODEL¡± making it much easier to compute forecasts and impulse responses.

• The graphs created by CATS can be customized.

• Output can be exported in tex or csv formats.

• Restrictions can be saved and re-loaded, making it easier to replicate analyses or continue your work at a later time.

• CATS offers the option of running in a true batch mode that does not require user interaction to generate basic output. This allows it to be used in loop.

 

´Ù¸¥ ±â´É ¹× Ư¡µé

´ÙÀ½ ±â´ÉµéÀº 1.0 ¹öÀüÀÇ °­Á¡µéÀ» °¡Á®¿Â °ÍÀÔ´Ï´Ù.

• ¡°Batch¡± tests for long-run exclusion, weak exogeneity, and stationarity on all model variables (now available from the cats menu). Also includes a test for unit vectors in alpha, which corresponds to testing if the cumulated disturbances of any of the variables do not enter the common trends.

• Support for partial systems, models with structural breaks, and various forms of dummy variables.

• Multivariate and univariate tests of the estimated residuals.

• Recursive estimation for assessing constancy of the estimated model parameters, including tests for constancy of the estimated eigenvalues, the cointegrating space, the log-likelihood function, the parameters of an identified system, and the adequacy of one-step-ahead predictions.

• Options for testing hypothesis on the long-run relations in Beta as well as on the adjustment coefficients in Alpha.

• Choice of normalization for each cointegrating vector (CATS 2 simplifies this by suggesting default choices).

• Estimation of the parameters of the moving average model, e.g. the long-run impact matrix C and the loadings to the common trends (with asymptotic t-values).

• A large variety of preset graphics illustrating various key aspects of the estimated model