Protection for sale under monopolistic competition: Beyond the CES

We extend the protection for sale model of Grossman and Helpman (1994) by introducing a general model of monopolistic competition with variable markups and incomplete pass-through. We show that the structure of protection emerging in the political equilibrium not only depends on the weight attached by the government to consumer welfare when making its policy decision, but also on the degree of market power of firms and on the terms-of-trade variations due to the degree of pass-through. Our results highlight the importance of preferences in shaping the structure of protection and are consistent with the occurring of protectionism also in unorganized industries.     

Trading activities,productivity and markups: Evidence for Spanish manufacturing

This work analyses the firms' internationalisation strategies of importing intermediates and exporting output, and the potential rewards of these activities in terms of total factor productivity (TFP), as a proxy for marginal costs, and markups. It further deepens into the study of the relationship between internationalisation strategies and markups by disentangling whether it operates through affecting firms' marginal costs and/or firms' prices. The panel database employed in this paper is the Spanish Survey on Business Strategies (ESEE) for the period 2006–14. Results in the paper distinguish between SMEs and large firms and indicate that there is high persistence in the performance of these activities and in firms' TFP and markups. For SMEs, we obtain rewards from importing inputs as well as exporting output in terms of TFP and markups. For large firms, we obtain rewards in TFP from the importing activity and rewards in markups from the exporting activity. Finally, we find evidence that the effects of internationalisation strategies on markups are due to both a price channel and a marginal cost channel.     

最低工资标准、人力资本扩张与企业成本加成*

本文以人力资本扩张为切入点，构建了最低工资、人力资本扩张影响企业成本加成的理论框架，并使用中国1998-2013年284个地级市的工业企业数据进行了经验研究。结论显示：最低工资上调会显著抑制企业成本加成的提升，削弱了企业的市场势力，但该抑制效应在人力资本扩张的背景下得以缓解。同时本文通过进一步分组回归发现，最低工资标准与人力资本扩张对企业成本加成具有明显的异质性影响。因此，适度、稳定调整最低工资标准及推动人力资本质量的整体提升有助于保持企业成本加成能力及其动态竞争力。     

Market entry and international propagation of business cycles

In this paper, pro-cyclical market entry acts as an international transmission mechanism for business cycle shocks. In an imperfectly competitive dynamic equilibrium model, an expansion in one open economy leads to additional business formation in a parallel large open economy through demand spillovers. Business formation causes a decline in markups leading to an expansion in employment, production, and investment in both economies. The modeling of the entry decision is critical. Only when the entry game is modelled as sequential (with incumbents enjoying a first mover advantage) are markups sufficiently elastic to cause international comovement.     

Markups,import competition and exporting

This paper analyses the relationship between markups and international trade at the firm level using a large sample of French manufacturing firms for the period 1995–2007. In particular, the paper investigates the effect of increasing import competition from China on firms' price–cost margins and the way in which exporting interacts with this effect. The results show robust evidence that firms in more direct competition with Chinese imports decrease their markups. However, firms that become exporters experience a smaller reduction in their price–cost margins. Consistent with these findings, the results also show that firms facing tougher competition from China are more likely to start exporting to avoid such competitive pressures.     

On the estimation of returns to scale, technical progress and monopolistic markups

A number of theoretical results on estimating returns to scale, technical progress and monopolistic markups are derived when there are multiple outputs and inputs. The choice of value added versus gross output and problems that arise in aggregation across sectors of an economy are also considered. Using US data on manufacturing, evidence is found of increasing returns to scale across all levels of aggregation. Technical progress is typically found to be insignificant implying that economic growth has been driven by increasing returns to scale rather than technical progress. Such findings have important implications for the macroeconomic modeling of economic fluctuations.     

Markups,Tobin's q,and the Increasing Capital Share

Increasing markups have recently gained prominence as a leading explanation for the increasing share of income going to capital since the 1980s. However, the existing analysis has been limited to the United States, covers only short periods, and generally does not control for potentially important confounders. Constructing data for the share of income going to capital and markups based on Tobin's q over the period 1870–2018 for 21 advanced countries, this research examines the ability of markups to explain the movements of income shares and the tendency for factor shares to converge toward constants in the long run. We find strong support for the markup hypothesis.     

竹材的价格—成本加成率研究

价格—成本加成率是常用的企业或产业业绩衡量指标之一 ,它在某种程度上表现了企业或产业的市场竞争力。作者根据江西省林产品成本调查历史数据 ,对竹材生产的价格—成本加成率进行了实证研究。发现 ,竹材的价格—成本加成率有相当高的水平 ,农村劳动力价格以及经济增长状况对竹材的价格—成本加成水平及变动有着重要的影响。     

Are margins more procyclical in concentrated industries?

In a series of recent papers, Domowitz, Hubbard and Peterson (DHP) have explored the temporal behavior of price-cost margins in a panel of 284 four-digit SIC industries. This paper reexamines DHP's apparent finding of more procyclical margins in concentrated industries, concluding that it is not robust. The result appears to arise from long-run trend correlations between margin and demand levels, rather than from short-run cyclical effects. Consistent with DHP, prices are found to be stickier and unit costs more countercyclical in concentrated industries. However, (1) an omitted variables bias is uncovered which substantially reduces the estimated cyclical effect on costs, and (2) prices are found to be more flexible in low concentration, low-PCM industries than DHP estimate. With prices more responsive to growth in demand and a countercyclical effect on cost of substantially lower magnitude, margins are thus estimated to bemore procyclical in less concentrated industries. This finding explains the relative rise in low concentration margins in the sixties which, in turn, helps account for the declining significance of the cross-sectional concentration-margins relationship.I would like to acknowledge helpful comments from Roy Rotheim, and two anonymous reviewers.     

融资约束降低了企业加成率吗?--来自中国的证据

融资约束是否限制中国工业企业加成率的提升?针对此问题,基于微观层面的中国工业企业生产和贸易匹配数据,实证检验融资约束对中国工业企业加成率的影响及其作用机制。结果显示:融资约束显著降低了中国工业企业的加成率。有关机制分析和实证检验进一步发现,融资约束会降低企业的生产率、减少企业出口的概率和降低出口产品质量,从而限制企业提升加成率水平,表明融资约束影响企业加成率理论机制中的生产率渠道、出口渠道和出口产品质量渠道均存在。为此,需深化金融市场改革,拓宽企业融资渠道,增强企业融资能力,以提高中国企业加成率以及在国际市场中的影响力和贸易利得。