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Commuting in Happyville

2016
This paper presents a spatial model of tax competition in an asymmetric duocentric city in which pollution from commuting is accounted for. Residential location being fixed, agents can chose their workplace and face a tradeo ff between wage and commuting costs - including traffi c-related pollution costs. We contrast the first best solution of a unique
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Commutativity of rings with constraints on commutators

2012
This paper studies commutativity of rings \(R\) satisfying polynomial identities of the form\break \(x^t[x^n,y]y^r=[x,y^m]y^s\) and three similar forms, where \(n,m,r,s,t\) are suitably-chosen nonnegative integers. Whether the theorems are correct as stated is not clear, but for some \((n,m,r,s,t)\) the proofs given do not work.
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