Information rents, economic growth and inequality: an empirical study of the United States
研究1947-2011年美国非生产性活动对经济增长、劳动生产率和收入不平等的影响，发现其依赖信息租金虽促进增长但加剧不平等。
Abstract In this paper, I estimate the impact of unproductive activities on economic growth, labour productivity and income inequality in the United States from 1947 to 2011. Productive activities directly create value, while unproductive activities do not. I develop a new methodology to compute the growth of productive and unproductive activities in terms of flows of income and stocks of fixed assets using input-output matrices and national income accounts. A core feature of my methodology is the notion that the commodification of knowledge and information gives rise to ‘information rents’. Information rents are, as I demonstrate, a determinant factor of growth and distribution. I find that unproductive activities have a net positive effect on economic growth and labour productivity, but at the price of increasing income inequality. Unproductive activities that rely on information rents, in particular, have increased income inequality and slowed down value-added growth despite their positive contribution to labour productivity. Information rents have drawn too much value from productive activities and benefitted the top income earners.