Testing the product test

The product test asks the product of the volume and price index numbers to equal the corresponding value change. The literature treats the product test as a requirement. We treat it as a hypothesis, and we provide an empirical test.     

Information technology and economic performance in U.S industries

Abstract .  We study the relationship between information technology (IT) and economic performance, to explore whether IT-capital promotes productivity growth. We use a data set similar to that of previous researchers, but employ non-parametric estimation techniques in order to directly estimate the output elasticities of IT for each industry and time period. We find that IT has a positive effect on productivity, which varies among industries and time. Moreover, adjustment costs are important when identifying this effect. Finally, IT-capital growth appears to be raising income in all industries used in our sample, even those that experienced output reduction.     

Sources of TFP growth: occupational choice and financial deepening

This paper explains and measures the sources of total factor productivity (TFP) by developing a method of growth accounting based on an integrated use of transitional growth models and micro data. We decompose TFP growth into the occupational-shift effect, financial-deepening effect, capital-heterogeneity effect, and sectoral-Solow-residuals. Applying this method to Thailand, which experienced rapid growth with enormous structural changes between 1976 and 1996, we find that 73% of TFP growth is explained by occupational shifts and financial deepening, without presuming exogenous technical progress. Expansion of credit is a major part. We also show the role of endogenous interaction between factor price dynamics and the wealth distribution for TFP. We thank Richard Rogerson for his clarifying and helpful discussion. The comments from the participants of the Minnesota Workshop in Macroeconomic Theory 2004, Stanford Institute for Theoretical Economics (SITE) Summer Workshop 2004, European Meeting and North American Summer Meeting of the Econometric Society 2004, NEUDC 2004, Iowa Conference of Economic Development, and seminars at USC Marshall School, Penn State University, UCLA, and UCSD are also appreciated. Financial support from NSF (SES-0318340) and NICHD (R01 HD27638) is gratefully acknowledged.     

Technical change and total factor productivity growth: The case of Chinese provinces

In the literature technical change (TC) is mostly assumed to be exogenous and specified as a function of the time trend or time dummies. However, some exogenous external factors other than time can also affect TC. In this paper we model TC via time trend (external non-economic) as well as other exogenous (external economic) factors (technology shifters). For this we define technology indices based on the external economic factors and the time trend. The specification of production function is then amended to accommodate these technology indices which are not necessarily separable from the traditional inputs. That is, these technology indices allow for non-neutral shift in the production function. In doing so we are able to decompose TC (a component of TFP change) into two parts. One part is driven by time and the other part is related to producer-specific external economic factors. The latter can further be decomposed into each external economic factors. The empirical model uses panel data on Chinese provinces. We identify a number of key technology shifters and their effect on technical change and TFP growth of provinces are examined.     

Understanding the economic dynamics behind growth-inequality relationships

In this paper, a dynamic general equilibrium (DGE) model of growth-inequality relationships, with missing credit markets, knowledge spillover and self-employed agents, is calibrated to New Zealand data. The model explains how two distinct policy shocks involving redistribution and immigration imply, subsequently, two completely opposite outcomes. Agents’ inability to borrow aggravates a negative macroeconomic effect of heterogeneity on growth. Redistribution mitigates that effect but creates microeconomic disincentives on saving and work-effort. Consequently, immigration shocks that perturb variance of efficiency induce a negative growth-inequality relationship, while redistribution shocks, in New Zealand’s case, produce larger fluctuations in incentives than in macro benefits, implying a positive growth-inequality relationship.     

VENTURE CAPITAL AND INNOVATION: WHICH IS FIRST?

Policy‐makers typically interpret positive relations between venture capital (VC) investments and innovations as evidence that VC investments stimulate innovation (VC‐first hypothesis). This interpretation is, however, one‐sided because there may be a reverse causality that innovations induce VC investments (innovation‐first hypothesis): an arrival of new technology increases demand for VC. We analyze this causality issue of VC and innovation in the US manufacturing industry using both total factor productivity growth and patent counts as measures of innovation. We find that, consistent with the innovation‐first hypothesis, total factor productivity growth is often positively and significantly related with future VC investment. We find little evidence that supports the VC‐first hypothesis.     

Creative accounting or creative destruction? Firm-level productivity growth in Chinese manufacturing

We present the first comprehensive set of firm-level total factor productivity (TFP) estimates for China's manufacturing sector that spans China's entry into the WTO. For our preferred estimate, which adjusts for a number of potential sources of measurement error and bias, the weighted average annual productivity growth for incumbents is 2.85% for a gross output production function and 7.96% for a value added production function over the period 1998-2007. This is among the highest compared to other countries. Productivity growth at the industry level is even higher, reflecting the dynamic force of creative destruction. Over the entire period, net entry accounts for over two thirds of total TFP growth. In contrast to earlier studies looking at total non-agriculture including services, we find that TFP growth dominates input accumulation as a source of output growth.     

Global welfare comparisons

Abstract To provide a normative foundation for transfers between different economies, one needs information on their ‘per capita welfare.’ This paper considers various methods for doing this and reaches the following conclusions: (i) Such global welfare comparisons are more demanding than usually thought. (ii) The ranking of methods differs from that of local (over‐time) comparisons, with real comprehensive per capita NNP being the least impractical method. The lesson is that global welfare comparisons should be performed with great care. The comparisons must be made in local real prices calculated according to ‘purchasing‐power‐parity,’ where non‐traded environmental amenities play an important role.     

The role of networking in the competitiveness of firms

Two main forces characterise production systems today: on the one hand, the increasingly global nature of markets and economies has resulted in increasing competition and a new, more global division of labour. On the other, the greater complexity of technology makes innovation a key aspect in the competitiveness of manufacturing firms. The establishment of cooperative networks seems to be important in both processes. This paper aims to explore these aspects by analysing the competitiveness of firms in four different sectors of the manufacturing industry: food, chemicals, electronics and vehicles. Data have been obtained from a survey conducted specifically for this purpose at company level in Spain. Findings from the empirical analysis, based on the application of the Polytomous Logistic Universal Model (PLUM), confirm the positive effects that the ability to network has on company performance. In particular, among all the potential organisations that work as partners of the firms, the paper shows the importance of intra-firm cooperation, the user-producer relationships and the cooperation between competitors.     

Economic Growth in Canada and the United States: Supply‐Push or Demand‐Pull?

Understanding the nature of structural change and the sources of economic growth of an economy, especially the relative importance of different industries, is essential for policy‐making. This paper estimates industry contribution to economic growth in both Canada and the United States. It argues that industry contribution should be evaluated on the basis of the performance of an industry in terms of creating economic value relative to other industries. In particular, it calls for the quantity and the price effects, which is consistent with real GDP in the chained‐Fisher index that values the industry more when its price rises and less when its price declines. This is an important departure from the traditional methodologies that consider only quantity effect. This paper shows that the contribution from demand‐driven industries is significantly more than the finding based on traditional thinking.     

Sources of Productivity Growth Dynamics: Is Japan Suffering From Baumol's Growth Disease?

This study examines the sources of labor productivity growth dynamics in Japan (1970–2010) and investigates the extent to which Japanese economic performance has been affected by Baumol's growth disease (BGD). We find that BGD silently undermines Japanese economic growth. However, the magnitude is miniscule, and consequently the aggregate labor productivity growth rate has not been decreasing monotonically. We also explore how BGD is arising and why it is small in the Japanese economy. BGD is weak because (1) the positive Baumol growth effect is also working in certain services sectors and (2) BGD is not a durable phenomenon: even if a sector begins to suffer from BGD, it is likely to recover quickly.     

Economic transition, higher education and worker productivity in China

We investigate the role of education on worker productivity and firms' total factor productivity using a panel of firm-level data from China. We estimate the returns to education by calculating the marginal productivity of workers of different education levels based on estimates of the firm-level production function. We also estimate how the education level of workers and CEO contributes to firms' total factor productivity. Estimated marginal products are much higher than wages, and the gap is larger for highly educated workers. Our estimate shows that an additional year of schooling raises marginal product by 30.1%, and that CEO's education increases TFP for foreign-invested firms. Estimates vary substantially across ownership classes, the effect of schooling on productivity being highest in foreign-invested firms. We infer that market mechanisms contribute to a more efficient use of human capital within firms.     

Do farmers choose to be inefficient? Evidence from Bicol

Farming households that differ in their ability or willingness to take on risks are likely to allocate resources and effort among income producing activities differently with consequences for productivity. In this paper we measure voluntary and involuntary departures from efficiency for rice producing households in the Bicol region of the Philippines. We take advantage of a panel of observations on households from 1978, 1983 and 1994. Available monthly weather data and survey information on planting times allows us to create household specific measures of weather shocks, which we use in our analysis. We find evidence that diversification and input choices do affect efficiency outcomes among farmers, although these effects are not dominant; accumulated wealth, past decisions to invest, favorable market conditions, and propitious weather are also important determinants of efficiency outcomes among Bicol rice farmers. Our findings suggest that the costs of incomplete formal and informal insurance markets are higher for poorer farmers.