Non-Homothetic Preferences and Industry Directed Technical Change
Non-Homothetic Preferences and Industry Directed Technical Change
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非相似偏好和行业导向的技术变革
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
F. Weiss
中科院分区：
文献类型：
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作者：
Timo Boppart;F. Weiss
部门数据的特点是（i）不同部门的相对支出不断变化，（ii）相对价格的不稳定性，以及（iii）各部门相对TFP增长率的长期趋势。我们提供了一个易于处理的理论，产业导向的技术变革，这是能够调和这些发现。在这样做的时候，本文强调的重要性，直接的技术变革，非同质性的偏好和结构变化作为一个长期的现象。使用美国的投入产出表，我们的理论有助于我们重新构建最终消费方面的结构变化如何影响行业增加值的市场规模。从单个企业的角度来看，认为最终消费的大类结构变化是外生的，这为我们提供了一个衡量工业市场规模（在增值一级）的工具。然后，我们实证检验了诱导创新的市场规模效应。我们的研究结果表明，一个行业的市场规模（相对于GDP）每增加1%，五年内全要素生产率增长率就会增加约0.3个百分点。
Sectoral data features (i) changing relative expenditures of different sectors, (ii) non-constancy in relative prices and (iii) long-run trends in relative TFP growth rates across sectors. We provide a tractable theory of industry directed technical change, which is able to reconcile these findings. In doing so, this paper emphasizes the importance of directed technical change, nonhomotheticity of preferences and structural change as a long-run phenomenon. Using the input-output tables of the U.S., our theory helps us to reconstruct how structural change in terms of final consumption affects the market size of industry value-added. Arguing that the structural change across broad categories of final consumption is exogenous from the perspective of an individual firm, this gives us an instrument for the industrial market size (at the valueadded level). We then empirically test for the market size effect of induced innovation. Our findings suggest that a 1 percent increase in an industry’s market size (relative to GDP) leads to an increase in the TFP growth rate of about 0.3 percentage points over five years.