Treasury’s advocacy of a CO2 tax

One thing on which I agree with Julia Gillard is the poor qual­ity of many jour­nal­ists’ analy­sis of her pro­pos­als. But when you cram jour­nal­ists with non­sense, you must expect some of them to regur­gi­tate it from time to time.

In the­ory, this is an inge­nious model for adapt­ing our fos­sil fuel econ­omy to global cli­mate change action. It was roundly endorsed by this week’s annual Aus­tralian Con­fer­ence of Econ­o­mists. But voter fears stirred up by Abbott reflect gen­uine uncer­tain­ties about the assump­tions.” Extract from Michael Stutch­bury in he Australian

To talk of the Treasury’s mod­el­ling report as if it were some sort of plan for cut­ting CO2 emis­sions rather than a piece of advo­cacy is at best naïve. Eco­nomic mod­els are never a plan. They’re incom­plete maps of possibly-imaginary land­scapes. The Treasury’s model is a piece of advo­cacy mas­querad­ing as an objec­tive ex-ante assess­ment. Con­se­quently, the reported “endorse­ment” from the Con­fer­ence of Econ­o­mists can be noth­ing more than a state­ment of pref­er­ences. There is no basis for test­ing the truth of advo­cacy; we can only dis­cuss whether the under­ly­ing pol­icy pro­posal is valid or not. What we can say of this model is that, given the extent and implau­si­bil­ity of its assump­tions, it is a weak argu­ment. Indeed, mostly a fan­tasy.

I have more faith in com­mon sense than Mr Stutch­bury. I doubt that Tony Abbott has “stirred up” vot­ers fears about the assump­tions built-into this pol­icy (and into the Treasury’s model). Vot­ers are able to work out for them­selves that try­ing to “fix” the global atmos­phere on our own (assum­ing it needs a “fix”; many vot­ers rea­son­ably doubt it) is com­plete mad­ness, espe­cially for a coun­try that exports car­bon. If more of Aus­tralian vot­ers knew how much the model depends on the Treasury’s assump­tions —about the avail­abil­ity of for­eign emis­sions “per­mits”; about the com­mer­cial suc­cess of “alter­nate” energy sup­plies; about steep increases in the price of Aus­tralian emis­sion taxes—they might be still more “stirred up”.

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