"How can I know what I think until I read what I write?" – Henry James


There are a few lone voices willing to utter heresy. I am an avid follower of Ilusion Monetaria, a blog by ex-Bank of Spain economist (and monetarist) Miguel Navascues here.
Dr Navascues calls a spade a spade. He exhorts Spain to break free of EMU oppression immediately. (Ambrose Evans-Pritchard)

miércoles, 6 de febrero de 2013

Inversión y ley de Okun

En la Ley de Okun en España veíamos lo que era su la ley y como explicaba bien la variaciones del paro en España. Aquí, ofrezco un gráfico que relaciona la tasa de paro con la tasa de Inversión/PIB.

La línea verde es la tasa sobre PIB de la inversión en capital dijo,

La línea azul es la tasa de paro sobre población activa.

La inspiración me viene de un gráfico de Taylor para EEUU, éste

Como ven, no es fácil escapar a la ley de Okun, como han demostrado los autores citados en aquel post, del que destacamos:

Spain is a good example. Its large rise in unemployment is explained almost entirely by the fact that its Okun coefficient βi is unusually large, along with the length of its recession. In other words, Spain did experience a larger rise in unemployment than other countries, but that is what we should expect based on its históricas Okun’s Law.
The estimated coefficients on the output gap vary across countries. Most are spread between –0.23 and –0.54, but two are lower in absolute value (Austria and Japan), and Spainis an outlier with –0.85. Countries with higher R2 s generally have higher coefficients, although Japan is an exception: it has a fairly high R2 (0.74) but a low coefficient (–0.16).Japan’s unemployment movements are small and are well explained by its output movementsand a low coefficient in Okun’s Law.
. Siendo la inversión el componente más variable del PIB, es de esperar que las variaciones en el paro y engañar algo que beber con ella.


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