{"id":9144,"date":"2018-02-22T14:32:00","date_gmt":"2018-02-22T14:32:00","guid":{"rendered":"https:\/\/policonomics.com\/?p=9144\/"},"modified":"2018-02-23T10:46:23","modified_gmt":"2018-02-23T10:46:23","slug":"lp-nueva-economia-keynesiana-modelo-layard-nickell-nairu","status":"publish","type":"post","link":"https:\/\/policonomics.com\/es\/lp-nueva-economia-keynesiana-modelo-layard-nickell-nairu\/","title":{"rendered":"Nueva Econom\u00eda Keynesiana: Modelo NAIRU de Layard y Nickell"},"content":{"rendered":"<p>El modelo de Layard y Nickell de la <a href=\"https:\/\/policonomics.com\/es\/nairu\/\"><em><u>NAIRU<\/u><\/em> <\/a>apareci\u00f3 como respuesta de la <a href=\"https:\/\/policonomics.com\/es\/nueva-economia-keynesiana\/\"><em><u>Nueva Econom\u00eda Keynesiana<\/u><\/em><\/a> al concepto de la <a href=\"https:\/\/policonomics.com\/es\/tasa-natural-desempleo\/\"><em><u>tasa natural de desempleo<\/u><\/em><\/a>, concebida por <a href=\"https:\/\/policonomics.com\/es\/milton-friedman\/\"><em><u>Milton Friedman<\/u><\/em><\/a> como una cr\u00edtica de la <a href=\"https:\/\/policonomics.com\/es\/curva-phillips\/\"><em><u>curva de Phillips<\/u><\/em><\/a> apoyada por la <a href=\"https:\/\/policonomics.com\/es\/sintesis-neoclasica\/\"><em><u>S\u00edntesis Neocl\u00e1sica<\/u><\/em><\/a>.<\/p>\n<p>De hecho, este modelo fue capaz de explicar el paradigma dejando a un lado las hip\u00f3tesis de mercado de trabajo perfectamente competitivo y pasando a un modelo basado en la determinaci\u00f3n de los salarios por medio de la negociaci\u00f3n de los sindicatos. En un <a href=\"https:\/\/policonomics.com\/es\/competencia-perfecta\/\"><em><u>mercado perfectamente competitivo<\/u><\/em><\/a>, los salarios y los precios de los <a href=\"https:\/\/policonomics.com\/es\/bienes\/\"><em><u>bienes<\/u><\/em> <\/a>son tradicionlamente determinados considerando que el precio de un producto est\u00e1 fijado por su <a href=\"https:\/\/policonomics.com\/es\/coste-medio-marginal\/\"><em><u>coste marginal<\/u><\/em><\/a> (y, en el caso de <a href=\"https:\/\/policonomics.com\/es\/competencia-imperfecta\/\"><em><u>competencia imperfecta<\/u><\/em><\/a>, por un margen de beneficio).<\/p>\n<p><a href=\"https:\/\/policonomics.com\/wp-content\/uploads\/2016\/02\/Modelo-NAIRU-de-Layard-y-Nickell-Salario-real-negociado.jpg\" rel=\"lightbox\"><img fetchpriority=\"high\" decoding=\"async\" class=\"alignright wp-image-3748\" src=\"https:\/\/policonomics.com\/wp-content\/uploads\/2016\/02\/Modelo-NAIRU-de-Layard-y-Nickell-Salario-real-negociado-300x230.jpg\" alt=\"Modelo NAIRU de Layard y Nickell - Salario real negociado\" width=\"400\" height=\"306\" srcset=\"https:\/\/policonomics.com\/wp-content\/uploads\/2016\/02\/Modelo-NAIRU-de-Layard-y-Nickell-Salario-real-negociado-300x230.jpg 300w, https:\/\/policonomics.com\/wp-content\/uploads\/2016\/02\/Modelo-NAIRU-de-Layard-y-Nickell-Salario-real-negociado-768x588.jpg 768w, https:\/\/policonomics.com\/wp-content\/uploads\/2016\/02\/Modelo-NAIRU-de-Layard-y-Nickell-Salario-real-negociado-1024x784.jpg 1024w, https:\/\/policonomics.com\/wp-content\/uploads\/2016\/02\/Modelo-NAIRU-de-Layard-y-Nickell-Salario-real-negociado-600x459.jpg 600w, https:\/\/policonomics.com\/wp-content\/uploads\/2016\/02\/Modelo-NAIRU-de-Layard-y-Nickell-Salario-real-negociado-1140x873.jpg 1140w, https:\/\/policonomics.com\/wp-content\/uploads\/2016\/02\/Modelo-NAIRU-de-Layard-y-Nickell-Salario-real-negociado-560x429.jpg 560w, https:\/\/policonomics.com\/wp-content\/uploads\/2016\/02\/Modelo-NAIRU-de-Layard-y-Nickell-Salario-real-negociado.jpg 1446w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/a>Los sindicatos negociar\u00e1n con las empresas para obtener sueldos reales mayores para los trabajadores. En la figura adyacente se puede ver c\u00f3mo seg\u00fan el modelo, cuanta m\u00e1s gente es empleada y representada por los sindicatos, mayores ser\u00e1n los sueldos reales, dando lugar a la curva SRN (salario real negociado). La explicaci\u00f3n es muy sencilla: desde la perspectiva de los trabajadores, mayores tasas de empleo implican menores costes de oportunidad derivados de la b\u00fasqueda de trabajo; por otro lado, es m\u00e1s probable que las empresas paguen salarios mayores cuando la econom\u00eda est\u00e1 en expansi\u00f3n, ya que no querr\u00edan disminuir la <a href=\"https:\/\/policonomics.com\/es\/produccion\/\"><em><u>producci\u00f3n<\/u><\/em><\/a>, lo que ocurrir\u00eda si los trabajadores convocasen huelgas.<\/p>\n<p>Una vez que los sindicatos han negociado unos salarios adecuados, la empresa fijar\u00e1 los precios (<em>P<\/em>) considerando tanto los costes de producci\u00f3n como los m\u00e1rgenes de beneficio (<em>\u03bc<\/em>). Si asumimos que los salarios reales (<em>W<\/em>) son el \u00fanico coste de producci\u00f3n (que es una hip\u00f3tesis razonable, ya que los salarios corresponden a una gran parte de los costes totales de producci\u00f3n), y tomamos en consideraci\u00f3n la productividad marginal (<em>PMg<sub>L<\/sub><\/em>), obtenemos el que ser\u00eda el precio escogido por la empresa:<\/p>\n<p><a href=\"https:\/\/policonomics.com\/wp-content\/uploads\/2016\/02\/formula-es-Modelo-NAIRU-Layard-Nickell-Precio.png\" rel=\"lightbox\"><img decoding=\"async\" class=\"alignnone wp-image-5746\" src=\"https:\/\/policonomics.com\/wp-content\/uploads\/2016\/02\/formula-es-Modelo-NAIRU-Layard-Nickell-Precio-300x81.png\" alt=\"Formula - Modelo NAIRU de Layard-Nickell - Precio\" width=\"166\" height=\"45\" srcset=\"https:\/\/policonomics.com\/wp-content\/uploads\/2016\/02\/formula-es-Modelo-NAIRU-Layard-Nickell-Precio-300x81.png 300w, https:\/\/policonomics.com\/wp-content\/uploads\/2016\/02\/formula-es-Modelo-NAIRU-Layard-Nickell-Precio-560x152.png 560w, https:\/\/policonomics.com\/wp-content\/uploads\/2016\/02\/formula-es-Modelo-NAIRU-Layard-Nickell-Precio.png 569w\" sizes=\"(max-width: 166px) 100vw, 166px\" \/><\/a><\/p>\n<p style=\"text-align: left;\"><a href=\"https:\/\/policonomics.com\/wp-content\/uploads\/2016\/02\/Modelo-NAIRU-de-Layard-y-Nickell-Salario-real-precio-determinado.jpg\" rel=\"lightbox\"><img decoding=\"async\" class=\"alignright wp-image-3749\" src=\"https:\/\/policonomics.com\/wp-content\/uploads\/2016\/02\/Modelo-NAIRU-de-Layard-y-Nickell-Salario-real-precio-determinado-300x230.jpg\" alt=\"Modelo NAIRU de Layard y Nickell - Salario real precio-determinado\" width=\"400\" height=\"306\" srcset=\"https:\/\/policonomics.com\/wp-content\/uploads\/2016\/02\/Modelo-NAIRU-de-Layard-y-Nickell-Salario-real-precio-determinado-300x230.jpg 300w, https:\/\/policonomics.com\/wp-content\/uploads\/2016\/02\/Modelo-NAIRU-de-Layard-y-Nickell-Salario-real-precio-determinado-768x588.jpg 768w, https:\/\/policonomics.com\/wp-content\/uploads\/2016\/02\/Modelo-NAIRU-de-Layard-y-Nickell-Salario-real-precio-determinado-1024x784.jpg 1024w, https:\/\/policonomics.com\/wp-content\/uploads\/2016\/02\/Modelo-NAIRU-de-Layard-y-Nickell-Salario-real-precio-determinado-600x459.jpg 600w, https:\/\/policonomics.com\/wp-content\/uploads\/2016\/02\/Modelo-NAIRU-de-Layard-y-Nickell-Salario-real-precio-determinado-1140x873.jpg 1140w, https:\/\/policonomics.com\/wp-content\/uploads\/2016\/02\/Modelo-NAIRU-de-Layard-y-Nickell-Salario-real-precio-determinado-560x429.jpg 560w, https:\/\/policonomics.com\/wp-content\/uploads\/2016\/02\/Modelo-NAIRU-de-Layard-y-Nickell-Salario-real-precio-determinado.jpg 1446w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/a>Y asumiendo que:<\/p>\n<p style=\"text-align: left;\"><a href=\"https:\/\/policonomics.com\/wp-content\/uploads\/2016\/02\/formula-Layard-Nickell-NAIRU-model-Assumption.png\" rel=\"lightbox\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5185 alignnone\" src=\"https:\/\/policonomics.com\/wp-content\/uploads\/2016\/02\/formula-Layard-Nickell-NAIRU-model-Assumption-300x140.png\" alt=\"Formula - Layar-Nickell NAIRU model - Assumption\" width=\"96\" height=\"45\" \/><\/a><\/p>\n<p style=\"text-align: left;\">Llegamos a que el salario real es:<\/p>\n<p><a href=\"https:\/\/policonomics.com\/wp-content\/uploads\/2016\/02\/formula-es-Modelo-NAIRU-Layard-Nickell-Salario-real.png\" rel=\"lightbox\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-5747 alignleft\" src=\"https:\/\/policonomics.com\/wp-content\/uploads\/2016\/02\/formula-es-Modelo-NAIRU-Layard-Nickell-Salario-real-300x69.png\" alt=\"Formula - Modelo NAIRU de Layard-Nickell - Salario real\" width=\"195\" height=\"45\" srcset=\"https:\/\/policonomics.com\/wp-content\/uploads\/2016\/02\/formula-es-Modelo-NAIRU-Layard-Nickell-Salario-real-300x69.png 300w, https:\/\/policonomics.com\/wp-content\/uploads\/2016\/02\/formula-es-Modelo-NAIRU-Layard-Nickell-Salario-real-600x139.png 600w, https:\/\/policonomics.com\/wp-content\/uploads\/2016\/02\/formula-es-Modelo-NAIRU-Layard-Nickell-Salario-real-560x129.png 560w, https:\/\/policonomics.com\/wp-content\/uploads\/2016\/02\/formula-es-Modelo-NAIRU-Layard-Nickell-Salario-real.png 606w\" sizes=\"(max-width: 195px) 100vw, 195px\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>Este salario real (denominado salario real precio-determinado, SRP) puede ser gr\u00e1ficamente representado como se muestra en la figura adyacente. N\u00f3tese que es una l\u00ednea horizontal, ya que para cualquier SRN, y a cualquier nivel de empleo, el margen de beneficio ser\u00eda el mismo, as\u00ed como la productividad marginal.<\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/policonomics.com\/wp-content\/uploads\/2016\/02\/Modelo-NAIRU-de-Layard-y-Nickell.jpg\" rel=\"lightbox\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright wp-image-3750\" src=\"https:\/\/policonomics.com\/wp-content\/uploads\/2016\/02\/Modelo-NAIRU-de-Layard-y-Nickell-300x230.jpg\" alt=\"Modelo NAIRU de Layard y Nickell\" width=\"400\" height=\"306\" srcset=\"https:\/\/policonomics.com\/wp-content\/uploads\/2016\/02\/Modelo-NAIRU-de-Layard-y-Nickell-300x230.jpg 300w, https:\/\/policonomics.com\/wp-content\/uploads\/2016\/02\/Modelo-NAIRU-de-Layard-y-Nickell-768x588.jpg 768w, https:\/\/policonomics.com\/wp-content\/uploads\/2016\/02\/Modelo-NAIRU-de-Layard-y-Nickell-1024x784.jpg 1024w, https:\/\/policonomics.com\/wp-content\/uploads\/2016\/02\/Modelo-NAIRU-de-Layard-y-Nickell-600x459.jpg 600w, https:\/\/policonomics.com\/wp-content\/uploads\/2016\/02\/Modelo-NAIRU-de-Layard-y-Nickell-1140x873.jpg 1140w, https:\/\/policonomics.com\/wp-content\/uploads\/2016\/02\/Modelo-NAIRU-de-Layard-y-Nickell-560x429.jpg 560w, https:\/\/policonomics.com\/wp-content\/uploads\/2016\/02\/Modelo-NAIRU-de-Layard-y-Nickell.jpg 1446w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/a>La relaci\u00f3n rec\u00edproca entre salarios e <a href=\"https:\/\/policonomics.com\/es\/inflacion\/\"><em><u>inflaci\u00f3n<\/u><\/em> <\/a>queda determinada. La distancia entre el nivel de empleo en equilibrio (L<sup>*<\/sup>) y la fuerza total de trabajo (L<sup>T<\/sup>), es la NAIRU. Cuando, por ejemplo, el nivel de empleo aumenta, los sindicatos ser\u00e1n capaces de negociar salarios mayores (A). Ya que la empresa no estar\u00e1 dispuesta a aceptar una disminuci\u00f3n en los beneficios, el margen de beneficio se mantendr\u00e1, lo que implicar\u00e1 un aumento de los precios. Por lo tanto, un aumento del empleo, que lleve el empleo a niveles mayores que la NAIRU, acabar\u00e1 trayendo consigo un aumento del nivel de precios.<\/p>\n<p>Cualquier variable que afecte a la determinaci\u00f3n de los salarios o a las tasas de desempleo es muy probable que afecte a la inflaci\u00f3n. As\u00ed, fijar los salarios por encima de los que habr\u00eda en un mercado de trabajo competitivo, lleva a un incremento de los precios, lo que aumenta la inflaci\u00f3n y reduce los salarios reales. De la misma forma, un aumento en las ayudas al desempleo eleva los salarios por encima de su nivel natural, con efectos similares. En esta lucha de m\u00e1rgenes de beneficio entre empresas y trabajadores, la NAIRU cobra relevancia. Esta intenta explicar los factores estructurales entre algunos pa\u00edses con mayor o menor tasa natural de desempleo que otros. Emp\u00edricamente, es interesante destacar que solo el 15% de los salarios en EEUU son fijados por los sindicatos, mientras que en algunos pa\u00edses de Europa, como Francia, Italia o Espa\u00f1a, famosos por tener una NAIRU elevada, alrededor de el 75% de los trabajadores est\u00e1n cubiertos por acuerdos colectivos.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Durante la segunda mitad del siglo XX, los keynesianos estaban ocupados luchando contra los neocl\u00e1sicos y los monetaristas que se estaban entrometiendo en su terreno sagrado: la macroeconom\u00eda y la curva de Phillips. La Nueva Econom\u00eda Keynesiana se centr\u00f3 en explorar los fallos de mercado.<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[362],"tags":[],"class_list":["post-9144","post","type-post","status-publish","format-standard","hentry","category-lpes-seccion"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Durante la segunda mitad del siglo XX, los keynesianos estaban ocupados luchando contra los neocl\u00e1sicos y los monetaristas que se estaban entrometiendo en su terreno sagrado: la macroeconom\u00eda y la curva de Phillips. 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