Productivity drivers of infrastructure companies: Network industries utilizing economies of scale in the digital era

What drives the productivity dynamics of infrastructure companies? Using a panel of firms in 14 countries, we study total factor productivity (TFP) enhancers of utility and network services companies. We find that moving TFP closer to the technological frontier drives productivity growth at higher speeds in Asian countries than in European countries. We also find that financial leverage exerts a positive effect on TFP growth for larger infrastructure firms and that more financially developed countries utilize economies of scale through better use of financial resources. Large utility and transportation companies display a higher rate of TFP growth, indicating that a competition policy to encourage M&As would be prudent for the utility/transportation sectors to maximize economies of scale. In contrast, we find diseconomies of scale for energy companies in some countries. Moreover, young network firms improve TFP growth faster than their peers in countries with fewer product market regulations. Therefore, policies should remove entry barriers while facilitating the departure of old and low-productivity firms from network markets. Finally, policymakers should offer well-targeted fiscal incentives for intangible investments to boost TFP because the accumulation of intangible assets such as digital technology promotes more scale economies through network effects.     

Life‐Cycle Patterns of Interest‐Rate Mark‐Ups in Small‐Firm Finance*

We derive empirical implications from a theoretical model of bank–borrower relationships. The interest‐rate mark‐ups of banks are predicted to follow a life‐cycle pattern over the age of the borrowing firms. Because of endogenous bank monitoring by competing banks, borrowing firms initially face a low mark‐up, and thereafter an increasing mark‐up as a result of informational lock‐in, until it falls for older firms when the lock‐in is resolved. By applying a large sample of predominantly small unlisted firms and a new measure of asymmetric information, we find that firms with significant asymmetric‐information problems have a more pronounced life‐cycle pattern of interest‐rate mark‐ups. Additionally, we examine the effects of concentrated banking markets on interest‐rate mark‐ups. The results indicate that the life cycle of mark‐ups is mainly driven by asymmetric‐information problems and not by concentration. However, we find evidence that bank market concentration matters for older firms ? 2 Correction added after online publication on 20^th February 2012; the original text read ‘However, we find evidence that bank market concentration for older firms’, omitting the word ‘matters’.
     

Firm productivity and importing: Evidence from Chinese manufacturing firms

This paper investigates various aspects of the relationship between firm productivity and importing for a large sample of Chinese firms between 2002 and 2006 making a distinction between the origin, variety, skill and technology content of imports. Employing a random effects probit model and a propensity score matching with difference‐in‐differences (PSM–DID) approach and treating imports as endogenous in our measure of total factor productivity (TFP) (De Loecker 2007), we test the self‐selection and learning‐by‐doing hypotheses. Our results show evidence of a bi‐directional causal relationship between importing and productivity. Although importing firms tend to be more productive before entering the import market, once they start importing firms experience significant productivity gains for up to two years following entry. We also find evidence of learning effects following the decision to import, which is stronger when import starters source their products from high‐income economies, import a wider variety of products and import products with a higher skill and technology content. A number of robustness checks confirm the learning effects of importing on TFP growth.     

Drivers of the real effective exchange rates in high and upper‐middle income countries

This paper revisits the nexus between real effective exchange rate (REER) and total factor productivity (TFP) by controlling for trade openness, financial development and natural resources rents. We use a sample of 60 high‐income and upper‐middle income countries over the period 1995–2015 and employ the GMM estimation framework. Our results advance the empirical knowledge on the drivers of REER by providing robust evidence that the impact of TFP is not uniform across different country clusters. We find that in high‐income countries, increasing productivity causes the REER to depreciate hence becoming more trade competitive while the opposite is true for upper‐middle income countries. Furthermore, financial development and natural resources rents have no meaningful impact in the case of upper‐middle income countries but retain a significant effect in high‐income countries. Trade openness plays a key role in explaining the variation in REER in both country clusters.     

Trade and market selection: Evidence from manufacturing plants in Colombia

We examine the link between trade liberalization and aggregate productivity, with a focus on improved market selection resulting from a reduction in trade barriers and in the dispersion of these barriers across producers. Our analysis exploits tariff changes across sectors after the Colombian trade reform. An additional advantage of our analysis is that our TFP measure does not include demand and price effects. We find that reduced trade protection makes plant survival depend more closely on productivity. Using a dynamic simulation, we find that enhanced selection increases aggregate productivity substantially. Trade liberalization also increases productivity of incumbent plants and improves the allocation of activity. We find larger effects on allocative efficiency with our TFP measure than with a traditional measure including price effects.     

The Effect of Foreign Entry Regulation on Downstream Productivity: Microeconomic Evidence from China*

We examine the cross‐industry influence of foreign entry regulation (based on a novel measure) on the productivity outcomes of downstream firms through input–output linkages in China. In contrast to the significant liberalization of the manufacturing sector, restrictions on the service sector remained stringent over the period 1997–2007. We find a powerful depressant effect of foreign entry barriers imposed on the upstream manufacturing and service industries on the productivity of downstream manufacturers, and this effect depends on a number of industry‐ and firm‐specific features. Our research calls for further investment liberalization (particularly in the service sector) in China.     

企业生产率和企业"走出去"对外直接投资:基于企业层面数据的实证研究

随着中国走出去的战略实施,我国企业的对外直接投资也日益增长。通过采用浙江省制造业企业生产和对外直接投资的企业层面数据,在准确衡量"走出去"企业的全要素生产率的基础上,本文考察了企业生产率及其直接对外投资的关系。在控制了回归分析可能的内生性及其他影响因素后,我们发现:第一,生产率越高的企业对外直接投资的概率越大;第二,生产率越高的企业对外直接投资的量越大;第三,目的国的收入水平高低对企业投资与否的决定没有显著的影响。此外,行业的资本密集程度对企业的生存环境没有显著的影响。所以,本文的发现为我国企业的对外直接投资提供了微观层面的经验证据,一定程度上弥补了这方面研究的空白。     

Complementarity,Linkages between Firms,and the Effect of Entry Costs on Productivity

In a general equilibrium model where firms are heterogeneous in terms of productivity, we introduce differentiated goods in production that are not perfect substitutes, as well as intermediate inputs needed to produce those goods. We show that an increase in either the complementarity of differentiated goods or the share of intermediate inputs in gross output, significantly increases the negative effect of entry costs on total factor productivity (TFP) and output per worker. We also find that the effect of complementarity is quantitatively stronger. If we assume an empirically plausible value for the elasticity of substitution between differentiated goods, then the model considerably improves its ability to reproduce the observed negative relationship between entry costs and TFP or output per worker.     

Competition and productivity growth in South Africa

This article shows that mark‐ups are significantly higher in South African manufacturing industries than they are in corresponding industries worldwide. We test for the consequences of this low‐level of product market competition on productivity growth. The results of the paper are that high mark‐ups have a large negative impact on productivity growth in South African manufacturing industry. Our results are robust to three different data sources, two alternative measures of productivity growth, and three distinct measures of the mark‐up. Controlling for potential endogeneity of regressors does not eliminate the findings.     

Firm heterogeneity in TFP,sectoral innovation and location. Evidence from Italy

Sectoral and territorial specificities affect a firm’s capabilities of being productive. While there is a wide consensus on this, a quantitative measure of these effects has been lacking. To this end, we combine a data-set of Italian firms with some meso regional and sectoral variables and apply a cross-classified model that allows for a clear distinction between firm, region-specific and sector-specific effects. After observing a marked TFP heterogeneity across firms, the paper addresses the issue of understanding how much differences in firms’ productivity depend on regional localisation and sector specificities. Results refer to 2004–2006 and have three aspects. First, they confirm that the main source of firm variety is mostly due to differences revealed at individual level. Secondly, we find that the sector is more important than location in explaining firms’ TFP. Lastly, the results show that firm TFP increases when it belongs to more innovative sectors. Similarly, companies get benefits from belonging to sectors where there is a high proportion of firms using R&D public support and a high propensity to collaborate in innovative projects.     

The impact of domestic regulations on international trade in services: Evidence from firm-level data

In order to promote international trade in services, most bilateral and multilateral trade agreements aim at eliminating the discriminatory barriers. However, domestic regulations, which apply to all firms alike and do not intend to exclude foreign sellers, are often seen as serious obstacles to cross-border trade in services. This paper proposes an assessment of the impact of these regulations on international trade of professional services. Our empirical analysis combines OECD measures of domestic regulation and detailed French data on firm-level bilateral export of professional services. Results show a robust and a sizeable negative impact of domestic regulations on both the decision to export and the values exported by each firm. This impact does not vary with firms’ productivity, and remains significant when we focus on the European Union market, where French exporters do not face discriminatory barriers. We conduct a quantification exercise based on our estimates and find an average ad-valorem tariff equivalent of domestic regulations of 60% in 2007. The ad-valorem tariff equivalent ranges from 26% to 88%, depending on the country.     

Firm-Level TFP Growth in the Chinese Automobile Industry

China has been the world’s largest automobile producer since 2009,but it still lags behind other countries in terms of productivity. Based on theNational Bureau of Statistics of China (NBSC) firm-level data and the improvedapproach proposed by Ackerberg et al. (2015), this paper investigates thecontribution of total factor productivity (TFP) growth to the Chinese automobileindustry and evaluates the impact of firm entry and exit on TFP growth. Theempirical results show that the TFP of the Chinese automobile industry grows at10.7% per year. Joint venture and foreign-owned firms have a significantly higherTFP growth rate than others. Large-scale firms have a higher TFP growth rate thando small-scale firms, but the latter have caught up after 2004. Moreover, the entryof new firms and exit of old firms significantly improve the aggregate TFP growthrate.     

Network technologies,communication externalities and total factor productivity

The main aim of this paper is to determine the factors which enhance or temper firms’ private incentives to use communications technologies that are characterised by network externalities and allow firms to influence their rate of technological change or total factor productivity (TFP). As regards the impact of the network effect on TFP, we find that when the externality parameter is low, a slightly negative effect appears, but this effect is reversed when the externality is higher. This relationship is valid regardless of the number of firms. Our result is particularly interesting because it offers a possible explanation for the Solow productivity paradox. We conclude that, in addition to the degree of network effects, market structure, consumer preferences and the number of users also have a very important influence on TFP and technological change.     

Barriers to entry, deregulation and workplace training: A theoretical model with evidence from Europe

We study the impact of regulatory barriers to entry on workplace training. We develop a model of training in imperfectly competitive product and labour markets. The model indicates that there are two contrasting effects of deregulation on training. As stressed in the literature, with a given number of firms, deregulation reduces the size of rents per unit of output that firms can reap by training their employees. Yet, the number of firms increases following deregulation, thereby raising output and profit gains from training and improving investment incentives. The latter effect prevails. In line with the predictions of the theoretical model, we find that the substantial deregulation in the 1990s of heavily regulated European industries (energy, transport and communication) increased training incidence.     

Corruption,Bureaucracy and Firm Productivity in Africa

This paper estimates the impact of corruption and poor bureaucratic quality on firm productivity for a unique dataset with firm‐specific data of more than 900 firms over 12 years for Ghana, Kenya and Tanzania. We first discuss why poor bureaucratic quality and, especially, corruption are expected to have negative impacts on firm productivity. We then employ Data Envelopment Analysis to estimate firm productivity and pooled OLS and Tobit regression analysis to estimate the effects of corruption and bureaucratic quality on firm productivity. We find that less productive firms are more likely to engage in corrupt activities; both poor bureaucratic quality and corruption reduce firm productivity; and corruption has a greater negative impact on productivity.     

Does access to credit improve productivity? Evidence from Bulgaria1

Although it is widely accepted that financial development is associated with higher growth, the evidence on the channels through which credit affects growth at the microeconomic level is scant. Using data from a cross‐section of Bulgarian firms, we estimate the impact of access to credit, as proxied by indicators of whether firms have access to a credit line or overdraft facility, on productivity. To overcome potential omitted variable bias of Ordinary Least Squares (OLS) estimates, we use information on firms’ past growth to instrument for access to credit. We find credit to be positively and strongly associated with TFP. These results are robust to a wide range of robustness checks.     

Vertical Integration,Firms’ Entry,Exit, Strategic Shifts,Age, and The Productivity Growth in Korea's Core Growth‐Leading Industries

This study attempts to measure the impact of firms’ entry, exit, strategic shifts, and age on the productivity growth of Korea's three core growth‐leading industries and their vertical integration with capital share (VI) firms and non‐VI (NVI) firms in view of the 2008 global financial crisis and the institutional push by the Korean Government. A stochastic frontier production model was applied to firm‐level panel data from 2006 to 2011 for Korea's automobile, electronics and general machinery industries. The results show that exogenous shocks to the market triggered large‐scale resource reallocations from firms with declining productivity to firms with less declining or rising productivity, and market share reallocation between VI firms and NVI firms. The Korean Government's institutional push led the productivity growth of NVI firms to reach their highest levels in 2010. In a VI structure, a structure comprising VI firms only, the agency problem dominated the synergies of secure supply chains and saving on transaction costs, while NVI firms endeavoured to raise their productivity to step into a VI structure to secure stable supply chains, only to find their R&D initiatives stagnated once they took on the VI structure. Therefore, efficient resource reallocation is hindered by the agency problem within the bounds of vertically integrated industrial structures.     

Entry costs, industry structure, and cross-country income and TFP differences

Entry costs vary dramatically across countries. To assess their impact on cross-country differences in output and TFP, we construct a model with endogenous entry and operation decisions by firms. We calibrate the model to match the U.S. distribution of employment and firms by size. Higher entry costs lead to greater misallocation of productive factors and lower TFP and output. In the model, countries in the lowest decile of the entry costs distribution have 1.32 to 1.45 times higher TFP and 1.52 to 1.75 times higher output per worker than countries in the highest decile. As in the data, higher entry costs are associated with lower entry rates and business density.     

UNDERSTANDING THE WORLD WOOL MARKET: TRADE,PRODUCTIVITY AND GROWERS’ INCOMES*

Applying recent estimates of total factor productivity (TFP) growth on Australian sheep farms, we analyse the long‐run effects of TFP growth on the world wool market using a detailed model of the world wool market that treats raw wool, wool textiles and wool garments as heterogeneous commodities. The model divides the world wool market into nine regions and eight major industrial sectors capturing the extreme nature of the multistage production system through which wool passes. We find that regional sheep producer's welfare responds by between ‐0.9 per cent and 0.7 per cent assuming conservative TFP growth over the period 1995/96–2003/04. Sensitivity analysis shows the welfare effects to be robust with respect to all model parameters, but sensitive to the size of the TFP growth and the degree of TFP spill‐over. Our realistic representation of the multistage nature of the wool production system shows that wool inputs steadily decline in importance in moving from early‐ to late‐stage processing. This production structure indicates that the productivity of sheep farmers has little effect on the prices of and demand for wool garments. In contrast, trade in wool inputs is very responsive to the productivity of sheep farmers.     

Market entry,privatization and bank performance in transition1

This paper examines how market entry and privatization have affected the margins and marginal costs of banks in the post‐communist transition. We estimate bank revenue and cost functions, allowing the estimated parameters to change over time. In the first sub‐period (1995–98), we find that privatized banks earned higher margins than other banks, while foreign start‐ups had lower marginal costs. In the third sub‐period (2002–2004), foreign banks remained low marginal cost service providers, while privatized domestic banks had the widest margins. Subtracting marginal costs from margins to calculate mark‐ups, an indication of demand for services, shows that initially privatized banks had the largest mark‐ups. However, by the third sub‐period, differences among private banks diminished. In comparison to private banks, state banks persistently under‐performed in controlling costs and attracting demand. Our evidence therefore indicates that foreign bank entry promoted lower costs and that privatization and market entry encouraged more demand for services.