Mind the Gap! International Comparisons of Productivity in Services and Goods Production

Abstract. In this paper, we make a comparison of industry output, inputs and productivity growth and levels between seven advanced economies (Australia, Canada, France, Germany, the Netherlands, United Kingdom and United States). Our industry-level growth accounts make use of input data on labour quantity (hours) and composition (schooling levels), and distinguish between six different types of capital assets (including three information and communication technology (ICT) assets). The comparisons of levels rely on industry-specific purchasing power parities (PPPs) for output and inputs, within a consistent input–output framework for the year 1997. Our results show that differences in productivity growth and levels can be mainly traced to market services, not to goods-producing industries. Part of the strong productivity growth in market services in Anglo-Saxon countries, such as in Australia and Canada, may be related to relatively low productivity levels compared with the United States. In contrast, services productivity levels in continental European countries were on par with the United States in 1997, but growth in Europe was much weaker since then. In terms of factor input use, the United States is very different from all other countries, mostly because of the more intensive use of ICT capital in the United States.     

INTERNATIONAL PRICE COMPARISONS BASED UPON INCOMPLETE DATA*

This paper is directed at the following question: given an incomplete set of price data relating to goods or services in some category of output for each of a number of different countries, what arithmetic should be performed on the prices to get a meaningful representation of the relative category price-levels of the countries? In the course of developing an answer to the question, some broader matters are considered and illuminated. A comparison of category price-levels for different countries is analogous to a commonly-encountered problem in many areas, that of ranking ordinally or cardinally in one dimension a group of “entities”—persons, households, firms, industries, etc.—on the basis of sets of measurements associated with the individual entities. It is this point of view which dominates the following presentation.     

Estimating Purchasing Power Parities from Household Expenditure Data Using Complete Demand Systems with Application to Living Standards Comparison: India and Vietnam

This study departs from the previous literature on purchasing power parity (PPP) by proposing a demand system based methodology for calculating the PPP that takes account of consumer preferences and allows for the substitution effect of price changes. The methodology is used to calculate the PPP between the Indian Rupee and the Vietnamese Dong. The study allows for regional variation in preferences and price changes both inside the country and between countries. It proposes and applies a methodology for constructing prices from unit values after adjusting them for quality and demographic effects. The adjusted unit values are used as prices in the demand estimations, and the demand parameter estimates are used to calculate both spatial prices within each country and the PPP between the two countries within a consistent framework. The study illustrates the usefulness of preference consistent methods to calculate the PPP by applying the PPPs to compare living standards between India and Vietnam. The significance of the results follows from the fact that the levels of living comparisons are quite sensitive to the PPP used in converting the Rupee expenditure into Vietnamese Dong. The present results on food PPPs question the relevance of the PPPs from the ICP project in cross‐country welfare comparisons especially in a period of high food inflation.     

Legal Institutions, Sectoral Heterogeneity, and Economic Development

Poor countries have lower PPP-adjusted investment rates and face higher relative prices of investment goods. It has been suggested that this happens either because these countries have a relatively lower TFP in industries producing capital goods or because they are subject to greater investment distortions. This paper provides a micro-foundation for the cross-country dispersion in investment distortions. We first document that firms producing capital goods face a higher level of idiosyncratic risk than their counterparts producing consumption goods. In a model of capital accumulation where the protection of investors' rights is incomplete, this difference in risk induces a wedge between the returns on investment in the two sectors. The wedge is bigger, the poorer the investor protection. In turn, this implies that countries endowed with weaker institutions face higher relative prices of investment goods, invest a lower fraction of their income, and end up being poorer. We find that our mechanism may be quantitatively important.     

Intersectoral Spillovers,Relative Prices and Development Traps

Why is the economic growth rate so low in poor countries? This paper offers an explanation by using a simple two‐sector AK growth model with intersectoral linkages and high relative prices of intermediate goods. Intersectoral linkages lead to two balanced growth paths (BGPs). The high‐growth BGP is a source. The low‐growth BGP is a sink because it has a small final goods sector, small intersectoral spillovers from the final goods sector to the intermediate goods sector, and small marginal products in the intermediate goods sector, yielding high relative prices of intermediate goods. The low‐growth BGP is an attractor and thus development trap. To produce a big push effect, this paper analyzes the first‐best policy and finds that a subsidy to own consumption and a provision of public goods to the final goods sector can internalize the external effect and render the low‐growth BGP infeasible. As a result, there is only the high‐growth BGP.     

Dutch disease and the oil boom and bust

This paper examines the impact of the oil price boom in the 1970s and the subsequent bust on non‐oil economic activity in oil‐dependent countries. During the boom, manufacturing exports and output increased significantly relative to non‐oil countries. These measures decreased gradually during the bust and subsequent period of low prices, displaying a positive relationship with oil prices. However, exports of agricultural products sharply decreased during the boom. Imports of all types of goods displayed strong pro‐cyclicality with respect to oil prices. The results suggest that increased local demand and investment spillovers from the windfall resulted in increased manufacturing activity.     

International Provision of Trade Services, Trade, and Fragmentation

This paper examines the special role that trade liberalization in service industries can play in stimulating not only trade in services but also in goods. International trade in goods requires inputs from several services industries (trade services, such as transportation, insurance, and finance) in order to complete and facilitate international transactions. Restriction on the ability of national service providers to provide these services across borders and within foreign countries creates additional costs and barriers to international trade above those that would arise in otherwise comparable intranational exchange. As a result, trade liberalization in services can yield benefits, by facilitating trade in goods, that are larger than one might expect from analysis of the services trade alone. This paper explores this idea using simple theoretical models to specify the relationships between services trade and goods trade. The paper also notes the role of services trade in a model of international industrial fragmentation, where production processes can be separated across locations but at some cost in terms of additional service inputs. The incentives for such fragmentation can be larger across countries than within countries, owing to the greater differences in factor prices and technologies available. However, the service costs of international fragmentation can also be larger, especially if regulations and restrictions impede the international provision of services. As a result, trade liberalization in services can also stimulate fragmentation of production of both goods and services, thus increasing international trade and the gains from trade even further.     

Demand complementarities and cross‐country price differences

Empirical studies document that markups vary across destinations. This paper proposes a novel mechanism to explain variation in markups: consumers’ utility from final goods and services depends on their consumption of complementary goods and services. In countries with more complementary goods and services, consumer demand is less elastic, enabling monopolistically competitive firms to charge higher prices. The paper provides empirical evidence documenting a dependence of prices on demand complementarities.     

Beyond Balassa–Samuelson: Real appreciation in tradables in transition countries1

We decompose real appreciation in tradables derived from producer price indexes in three Central European countries between the pricing‐to‐market component (disparity) and the local relative price component (the substitution ratio). Appreciation is only partially explained by local relative prices. The rest is absorbed by disparity, depending on the size of the no‐arbitrage band. The observed disparity fluctuates in a wider band for differentiated products than for commodity like goods.     

QUANTITY AND PRICE INDEXES FOR CONSTRUCTION

Construction has traditionally constituted one of the problem areas in the preparation of industry price and quantity statistm with in the system of national accounts of most countries. The difficulty stems from what is considered to be the unique character of construction projects. This has unnecessarily impeded the calculation of output price indexes and has resulted in the use of various input-based prices as proxies for output prices. One of the objectives of the development of the system of construction price statistics described in this paper is to permit deflation of the outputs of construction industries in order to produce industry output data in constant prices in a manner consistent with measures for the rest of the economy. This is a more promising approach to improving constant price industry and expenditure measures within the SNA framework than attempting such improvements through the collection of a vast array of quantity data. Construction industries sell specified configurations of materials-in-place which are, to borrow the jargon of other fields, sub-assemblies of some total system. As in other areas of industrial pricing, some of these products are simple and some are complex. Trade contractors sell these sub-assemblies or commodities mainly to an owner-builder or to a general contractor who, in turn, resells the trade contractors’ commodities along with whatever sub-assemblies the general contractor has produced. These sub-assemblies, when combined with, for example, the relevant outputs (or sub-assemblies) of manufacturers, the design services of service industries and the purchasers’ own contributions, yield the wide variety of plant and structures which constitute the various classes of gross fixed capital formation, which are not typically solely the outputs of the construction industries. The resulting contractors’ selling price indexes will provide deflators for the whole range of outputs of the various construction industries. These will become part of the system of industry selling price indexes from which relevant indexes for the various goods and services can be selected and combined with appropriate weights to yield arrays of deflators for the highly complex capital expenditures of business, institutions and government. Ultimately this integrated system of construction industry statistics will permit the preparation of gross output and value added measures, in both current and constant prices, to be calculated for the construction industries as an integral part of the Canadian System of National Accounts, as well as provide a key element for improving the deflation of fixed capital formation.     

ICP 2005 Construction Prices: Are They Underestimated in Developing Countries?

Construction prices are lower in developing countries in ICP 2005, which has raised these countries' capital/output ratio in Penn World Tables 7 and 8 and affected growth analyses. We estimate the Colombia/U.S. price ratio for office and apartment buildings in 2005 as a test of the validity of the ICP 2005 methodology for estimating these prices. Our estimate of the Colombia/U.S. price ratio is almost twice the ICP 2005 estimate. We confirm the validity of our results by estimating the cost of constructing office and apartment buildings using 2005 prices for construction materials, equipment, and labor in both countries.     

NEW INSIGHTS INTO THE STRUCTURE OF THE WORLD ECONOMY*

The United Nations' newly completed study of purchasing power parities covering 34 countries varied in region, income level, and form of economic organization shows the systematic differences between the usual view of the structure of the world economy arising out of international comparisons based upon foreign exchange rate conversions and the structure one sees when actual prices are available. The real per capita GDP of developing countries is understated relative to developed countries when exchange rates are used in converting countries' national income accounts to a common currency, with the degree of understatement for any two countries being inversely related to the per capita income difference between them. The reason for this is that relative prices in the non-traded goods sector are lower relative to traded goods prices in low income countries. The systematic pattern observed in the 1975 data of the 34 countries has been extrapolated over time and space to get estimates of GDP for other years and countries. In the absence of detailed price data, the real shares of final expenditures devoted to particular components of the total can only be estimated as the proportion of own currency total expenditure devoted to the components. The observed differences in the pattern of prices of poor countries relative to rich for different components makes this clearly wrong for international comparisons, and in systematic ways. For example, (i) the relative price of services compared with commodities in poor countries is lower than in rich; so the apparent tendency of the share of services to rise as a country's income rises disappears when real quantities are considered; similarly, (ii) the relative price of capital goods is greater in poor countries compared with rich ones, so the difference in investment ratios out of GDP between rich and poor countries is understated.     

EXPORTS AND JOBS: THE CASE OF JAPAN, 1975–2006

This paper asks how much employment is created by increasing goods and services exports and how the export dependence of employment has changed over time. Using the newly developed Japanese input‐output table for 1975–2006, this paper estimates the effect of exports on an industry's employment (i.e., direct effect) and the effect on other industries' employment (i.e., indirect effect). One of our major findings is that the magnitude of the indirect effect exceeded that of the direct effect over almost the entire period. This implies that more than half of the effects of exports appeared through intraindustry linkages. We also found the indirect effect of goods exports is not limited to goods industries. As a result, the increases in the export dependence of employment are not limited to major Japanese export‐oriented industries such as electrical machinery, motor vehicles, and general machinery. In identifying the potential risks of negative external shocks, it is important for policy makers to estimate how much employment is indirectly as well as directly dependent on exports. (JEL F16, F14)     

Measuring the effectiveness of cost and price competitiveness in external rebalancing of euro area countries: What do alternative HCIs tell us?

This study examines the marginal effects of traditional determinants of exports and imports with a focus on the role of price competitiveness in restoring external balances in the euro area. It is a first attempt to compare marginal effects of various harmonised competitiveness indicators (HCIs) on both exports and imports of both goods and services across individual euro area countries. We find evidence that HCIs based on broader cost and price measures have a larger marginal effect (with some exceptions) on exports of goods. Exports of services are sensitive to HCIs in big euro area countries and Slovakia, where exports of services are also found more sensitive to competitiveness indicators based on broader price measures. Imports of goods and imports of services are quite insensitive to changes in relative prices. Finally, in some cases measures of fit indicate that a large unexplained residual part is present, implying that other non-price related factors might play an important role in driving foreign trade and policies aimed at enhancing the quality of goods traded are warranted.     

Home bias, distribution services and determinants of real exchange rates

This paper examines empirically how exogenous changes in the terms of trade affect the real exchange rate through the relative price of traded goods with Canada–US data. The relative price of traded goods is constructed using prices at the dock and retail prices. The first measure emphasizes the importance of home bias in consumption of traded goods. The second measure highlights the importance of distribution services required for consumption of traded goods. It is found that terms of trade shocks affect the relative price of traded goods using both measures. A possible interpretation of empirical findings is that home bias and distribution services are important for understanding the relative price of traded goods.     

Local Manufacturing Hurt by Depreciations in a Theoretical Model Reflecting the Australian Experience

The model is motivated by data showing that the Australian production of local manufactures is hurt by depreciations and invigorated by appreciations. The paper briefly presents such evidence and then proceeds to a theoretical analysis. The model aims to capture short‐to‐medium run exchange rate effects in an economy with goods and services aggregated into four commodities: (i) imports; (ii) local manufactures; (iii) services; and (iv) rural goods (agricultural, pastoral, forestry, fishing and mining products). With the exception of rural goods, each commodity comprises consumer goods as well as inputs into the other sectors. Rural goods enter consumption only indirectly after processing by the manufacturing sector. Exports are exclusively rural goods. The model has a Keynesian flavour in that the production of local manufactures and services is not constrained by the availability of resources and of labour. Variable inputs per unit of output are assumed to be constant. There are also fixed inputs. Variable inputs are imports in the case of the import sector; rural goods and imports in the case of the local manufacturing sector; and labour in the case of the services sector. The prices of imports, local manufactures and services are set by constant mark‐up factors on variable costs. This assumption is based on a picture of imperfect competition with constant elasticity of demand at the firm level. The extreme capital intensity of rural goods production is taken into account by modelling total production of rural goods as an exogenous parameter. The price of rural goods is determined in the export market. It falls with increasing exports. The economy is not assumed to be small in its export market. The domestic consumption demand schedule is modelled as predetermined in the sense that in the time span under consideration the relationship between quantities consumed and nominal prices is not affected by the exchange rate. The nominal wage rate is assumed to be predetermined in the same sense. No specific functional form is imposed on the consumption demand schedule: the analysis is based on general assumptions, mainly non‐inferiority and gross substitutability. In view of gross substitutability, there is a competitive relationship between imports and local manufactures. Adepreciation raises the price of imports and ceteris paribus such an increase raises the consumption of manufactures. However, the analysis shows that this enhancing influence of a depreciation on manufacturing is weaker than other causal channels that work in the opposite direction. An increase in the price of imports (and exportables) raises variable costs and thereby the price of local manufactures. This leads to a decrease in the output of local manufactures. In the course of the analysis, it is first shown that a uniquely determined equilibrium exists for every exchange rate above a lower bound. Then the effects of a change in the exchange rate are investigated. In most cases the results are unambiguous. In particular this is true for the output and the price of local manufactures. Other conclusions are that a depreciation increases exports and the amount of services provided. In some cases unequivocal results can be obtained only with the help of further assumptions. This concerns the domestic price of rural goods, the balance of trade in domestic prices and import penetration.     

HOW TO MEASURE LIVING STANDARDS AND PRODUCTIVITY

I set out a general algorithm for calculating true cost‐of‐living indices when demand is not homothetic and when the number of products may be large. The non‐homothetic case is the important one empirically (Engel's Law). The algorithm can be applied in both time series and cross section. It can also be used to estimate true producer price indices and Total Factor Productivity in the presence of input‐biased economies of scale and technical change. The basic idea is to calculate a chain index of prices but with actual budget (cost) shares replaced by compensated shares, i.e. what the shares would have been if consumers (firms) faced actual prices but their utility (output) were held constant at some reference level. The compensated shares can be derived econometrically from the same data as are required for the construction of conventional index numbers. The algorithm is illustrated by applying it to estimating true PPPs for 141 countries and 100 products within household consumption, using data from the World Bank's latest International Comparison Program.     

Trade and Tradability: Exports, Imports, and Factor Markets in the Salter-Swan Model

We extend the Salter-Swan model to include both factor markets and semi-traded goods. In our model, changes in relative factor prices depend on changes in world commodity prices, factor endowments, and the trade balance. In contrast, only changes in world commodity prices can affect factor prices in the neoclassical trade model. The inclusion of semi-traded goods weakens the magnification effect in both the Stolper-Samuelson and Rybczynski theorems. When imports and domestic goods are poor substitutes, a characteristic of some commodities in developing countries, the sign of the Stolper-Samuelson theorem is reversed.     

Price Levels and Economic Growth: Making Sense of Revisions to Data on Real Incomes

The price surveys from the 2005 International Comparison Program (ICP) imply substantially lower levels of GDP at purchasing power parity (PPP) for many developing countries than prior estimates. While some observers have questioned the data, this paper argues that the pattern of changes in PPPs between ICP rounds makes economic sense. Consistently with the original Balassa–Samuelson model, more rapidly growing economies experienced steeper increases in their PPPs relative to official exchange rates. This effect was even stronger for poor countries. Taking account of this effect would reduce the need for such large data revisions when new ICP data become available.     

CUTTING CARBON EMISSIONS AT A PROFIT (PART II): IMPACTS ON U.S. COMPETITIVENESS AND JOBS

This article examines how an integrated least-cost implementation of the Kyoto Protocol in the United States would affect U.S. competitiveness and jobs. Drawing on previous work, the authors analyze integrated emission reduction strategies based on a $50/ton carbon tax (including border tax adjustments), a payroll tax cut, energy-productivity–oriented market reforms, and international flexibility mechanisms. This policy portfolios is compared to conventional approaches that omit market and fiscal reforms.
Input-output data are used to estimate the impact on export prices of goods and services produced in the United States. Similar data are used to translate changes in GDP and energy production into employment impacts in energy and nonenergy sectors. The costs of providing transitional assistance for workers in the coal industry are compared to the GDP benefits of a profitable Kyoto strategy.
The analysis shows that relative to purchasing international emission rights, productivity-raising domestic market, institutional, and fiscal reforms offer much broader advantages for tradE-exposed U.S. industries. Though allowance purchases alone increase export prices of U.S. manufactured goods and services, an integrated no-regrets strategy reduces export prices for the large majority of U.S. industries and limits the impact of climate protection policies on the few most energy-intensive basic materials industries to very small levels. Relative to the baseline, an integrated least-cost implementation of the Kyoto target increases economy-wide employment levels by several hundred thousand jobs in 2010.