Efficient taxation of sugar‐sweetened beverages and missing markets for sugar content
发现含糖饮料的糖分含量存在缺失市场，提出对每单位饮料的糖分含量征税并辅以补贴可恢复效率，基于英国数据测算最优糖分税为每升0.38英镑，是现行税率的一到两倍。
Abstract This paper identifies missing markets for the sugar content of sugar‐sweetened beverages (SSBs) as a novel foundation of soft drink taxation. If the social marginal value of sugar content is negative, then missing price signals imply an inefficiently high sugar content. Efficiency is restored with a tax on the sugar content per unit of the SSB, augmented by a subsidy on the SSB. In an empirical calibration to the UK, the optimal SSB subsidy is small, whereas the optimal sugar content tax is £0.38 per liter and, thus, one and a half to two times larger than the tax rates implemented by the UK's soft drink levy.