Schumpeterian and semi‐endogenous productivity growth explanations

This paper examines the nature and sources of productivity growth in South African manufacturing sectors, from an international comparative perspective. On panel data estimations, we find that the evidence tends to support Schumpeterian explanations of productivity growth for a panel of countries including both developed and developing countries, and a panel of South African manufacturing sectors. By contrast, semi‐endogenous productivity growth is supported for a panel of OECD (Organisation for Economic Cooperation and Development) manufacturing sectors. However, we also report evidence that suggests that sectors are not homogeneous. For this reason, time series evidence may be more reliable than panel data. Time series evidence for South Africa suggests that prospects for the sustained productivity growth associated with Schumpeterian innovation processes, is restricted to a narrow set of sectors. For the OECD manufacturing sectors, both semi‐endogenous and Schumpeterian growth finds support. Schumpeterian growth is present for a larger number of sectors than for South Africa, and is most prevalent in the North American economies.     

Technology, demand and distribution: a cumulative growth model with an application to the Dutch productivity growth slowdown

This paper argues that the case for real wage growth restraint,and the consequent restoration of profitability, which the mainstreamconsensus regards as a necessary condition for sustained outputand productivity growth, is based on weak foundations, becauseit neglects the negative impact of wage moderation on productivitygrowth. Using a general Keynesian growth model, which integratesa (wage-led or profit-led) demand regime and a productivityregime (incorporating the productivity-growth enhancing effectsof higher demand and higher real wages), the conditions areidentified under which real wage restraint fails to raise outputand productivity growth. The model is applied empirically tothe Netherlands (1960–2000).     

A two-sector Kaleckian model of growth and distribution with endogenous productivity dynamics

This study extends a two-sector Kaleckian model of output growth and income distribution by incorporating endogenous labour productivity growth. The model is composed of investment goods and consumption goods production sectors. The impact of a change in wage and profit shares on capacity utilisation and output growth rates at the sectoral and aggregate levels are identified. The study reveals short-run cyclical capacity utilisation rates and productivity growth dynamics. Even if the short-run steady state is stable, the capital accumulation rate in the consumption goods sector must decrease more than that in the investment sector for long-run stability. When simultaneous rises in profit shares in both the sectors affect long-run aggregate economic growth differently at a steady state, the distributional interests between the same class in different sectors may hamper the long-run economic growth. A policy message is that the effect of income distribution on industrial output growth is not always beneficial. These phenomena are specific to two-sector models and cannot be observed when using conventional aggregate growth models.     

An econometric model of potential output, productivity growth, and resource utilization

This paper specifies a macroeconometric model providing a simultaneous framework for estimating the natural rate of unemployment, the full-employment (FE) labor force and hours of work, the FE productivity growth rate, and the growth path of potential (FE) output during 1960–2000. The estimated output and unemployment gaps are consistent with Okun’s Law. Historical perspective is provided on the expansion of the nineties by comparing it with those of the three previous decades in terms of growth and utilization of potential output. Factors accounting for the growth of potential output, productivity and labor supply are identified and compared.     

On the dynamics of a three-sector growth model

Uzawa’s two-sector growth model is extended into a three-sector model, where the labor growth rate is variable and bounded over time. The solution of this economic system is determined, as well as its long-run growth and asymptotic stability are investigated.      

The diffusion of new information technologies and productivity growth

This paper investigates the effects of the rates of diffusion of the cluster of new information technologies on the growth of output and total factor productivity in the main OCED and industrializing countries in the late eighties. This diffusion approach contrasts the technology production function framework. It predicts that the rates of generation of new technologies are much less effective than the rates of diffusion and the investment efforts in determining the growth of labor productivity especially when capital-intensive technologies which command high levels of investments are considered. The results make it possible to elaborate and assess empirically the notion of key-technologies that provide positive externalities to the rest of the system.A preliminary version of this paper has been presented at the European Conference of the International Telecommunications Society held at the Stenungsbaden Yacht Club.     

Business cycles and productivity growth: Are temporary downturns productive or wasteful?

This paper investigates the relationship between the structure of the business cycle and total factor productivity (TFP) growth in U.S. manufacturing. Previous empirical studies on cycle-growth interactions have been conducted at the aggregate level, and have produced mixed results. In contrast, we examine the dynamic linkages between temporary employment shocks and TFP at the industry level, using the NBER Productivity Database. Given the substantial differences in factor intensities, costs and the nature of innovation and productivity-enhancing activities across industries, there are good reasons why cycle-growth interactions may be more readily captured at the sectoral level. We construct an exactly identified Vector Autoregressive model for employment and TFP growth, and find strong support for the “opportunity-cost” view of business cycle-productivity growth interaction. This result suggests that recessions can lead to TFP growth through reorganization and restructuring effects. On the other hand, we find little support for the notion that temporary booms increase TFP through “learning-by-doing” effects. The responsiveness of TFP to employment shocks also seems to be related to the degree of job reallocation within individual industries and the capital intensity of the industry in question. This is further evidence in favour of the view that employment shocks can trigger reorganization effects. Finally, we suggest possible future avenues for this research, including the adjustment of TFP measures to allow for variable factor utilization over the cycle.     

The network of networks: Localized technological change in telecommunications and productivity growth

Radical innovations in the usage of telecommunication services have drastically changed the role of telecommunications in the economy. Today the usage of telecommunications services is associated with the opportunity to extract significant quasi-rents. An empirical analysis of the Italian case in the mid-eighties confirms the significant difference between telecommunications cost share and marginal productivity levels. The opportunity to reap transient quasi-rents has in turn pushed users to innovate so as to become major players in the arena of technological change in telecommunications and information technologies. In this context the notion of network of networks, implemented in the European Union, seems most appropriate to push the dynamic efficiency of the system and accommodate both centrifugal and centripetal innovations, yet also to retain network interoperability and interconnectivity.     

R&D and productivity growth: Evidence from the UK

Although the econometric evaluation of R&D has attracted wide interest in many countries, it has not attracted much in the UK. The main objective of this paper is to fill this void, i.e., to estimate the impact of R&D on productivity growth of the UK manufacturing sector. However, there are some additional objectives. Firstly, we estimate the impact of R&D on productivity growth of large and small firms and we discuss a number of theoretical arguments regarding the role of firm size. Secondly, given that the technological infrastructure influences the innovative capacity of a firm, we compare the impact of R&D on productivity growth of high-tech firms with the corresponding impact on productivity growth of low-tech firms. Thirdly, we investigate whether the contribution of R&D to productivity growth has changed over time.

Based on firm-level data (78 firms, 1989–2002), we find that the contribution of R&D is approximately 0.04. Although the R&D-elasticity of large firms (0.044) is higher than the corresponding elasticity of small firms (0.035), the difference is small. In contrast, the R&D-elasticity is considerably high for high-tech sectors (0.11), but statistically insignificant for low-tech sectors. Finally, the investigation of the elasticity of R&D over time revealed an interesting discontinuity showing that although until 1995 the R&D-elasticity was approximately zero, after 1995 it increased dramatically to 0.09. We investigate the potential causes of such non-linearity and we suggest a number of possible explanations.     

Fluctuations in convex models of endogenous growth, II: Business cycle properties

Using ideas from the endogenous growth literature, we present a model of the endogenous determination of productivity growth based on individual worker decisions about human capital investment. We calibrate a version of the model to match long run growth facts from the US and study the business cycle properties of this model. This approach offers improvements along several dimensions over standard exogenous growth methodologies. Most importantly, our stochastic endogenous growth model generates much greater serial correlation in output growth and labor supply volatility relative to its real business cycle counterpart. We conclude that using the extra discipline of reproducing the trend productivity growth features of the data endogenously constitutes an important missing component from the real business cycle approach.     

Inequality,unemployment, and endogenous growth in a political economy with a minimum wage

This paper presents development of an endogenous growth model with heterogeneous households and political determination of the minimum wage. We investigate the interaction of inequality, unemployment, and economic growth. First, the arguments in this paper show that a positive correlation exists between inequality and unemployment, Second, the interaction between inequality and economic growth is shown to be a positive relation if high inequality pertains in a society. It is a negative relation if low inequality pertains.      

A price endogenous computable planning model for a dual economy

This paper examines the nature of linkages between growth, employment and functional distribution of income in a dual economy. The analysis is carried out in terms of a dual economy general equilibrium model which is implicitly based on a social accounting matrix (SAM) type of information system. The parameter values and the structure of the model are based on Iranian data and the selection of policy packages is inspired by those undertaken in Iran during the 1970s. The model sheds some light on the consequences of the policies by quantifying their potential impact on the sectoral growth of output, levels of employment and functional distribution of income in the rural and urban areas.     

A dual economy model of endogenous growth with R&D and market structure

This paper develops a dual economy endogenous growth model to consider the effects of market structure and innovation on the rate of growth of an economy. There is an innovative goods sector where firms consistently invest in research and development to produce new products within a framework of monopolistic competition. Firms in the traditional goods sector produce a homogenous good, compete in a form of oligopoly (quantity competition), and seek to reduce their production costs. It is shown that growth is increasing in the market power that firms in the innovative goods sector obtain but decreasing in the equilibrium number of firms in the traditional goods sector.     

国际R&D溢出与生产率增长——基于APEC视角的动态面板数据分析

本文从服务贸易进口、FDI流入和生产率积聚效应等方面扩展了CH模型,并以APEC成员作为研究对象,运用动态面板数据模型和脉冲响应函教研究了全要素生产率、技术效率和技术进步的动态变化规律,得出了全要素生产率、技术效率和技术进步存在显著的积聚效应;本国R&D资本存量有助于提升技术效率,但是能否促进技术进步刖依赖于R&D投入强度;和通过服务贸易渠道获得的国际R&D溢出对全要素生产率和技术进步均有显著的促进作用等三个一般性结论.     

Entrepreneurship and productivity: The slow growth of the planned economies

Trends in gross domestic product (GDP) and total factor productivity (TFP) growth in the former socialist economies seem to indicate that these economies were converging to unusually low long-run growth rates in the late 1980s. In this paper we develop an endogenous growth model of entrepreneurship that is able to account for the difference in long-run performance between centrally planned economies and market-oriented ones. Long-run growth rates of output and productivity are determined by the growth of the stock of managerial knowledge, which in turn depends on the share of the population involved in entrepreneurial activities and on the time that spent on those activities. We analyze the effect of two characteristics of centrally planned economies on their growth performance. First, in centrally planned economies factors of production are distributed by the central planner to the firms' managers through a contest that uses up some of the managers' productive effort. Second, the leadership is “egalitarian,” in the sense that it treats individuals with different abilities equally. We show that these two features reduce the fraction of people becoming entrepreneurs/managers, as well as their managerial effort, which in turn reduces long-run output and TFP growth. Furthermore, we find that centrally planned economies have lower income inequality and slightly higher capital–output ratios, which is consistent with these countries' experiences.     

Even the bad times are good: a behavioural theory of transformation pressure

A theory of transformation pressure was developed in Swedenin the 1990s which suggested that structural changes, rationalisationsand innovations are stimulated by profit crises, arising, forexample, from negative demand shocks and restrictive economicpolicies. Firms will then either become more creative or abandonan overconfident, risk-prone and irrational status quo strategy.A qualified theory states that productivity will increase asexternal pressures become stronger but only up to a certainpoint. A competing qualified theory maintains that productivityis maximised if periods of hard pressure are succeeded by periodsof financial and technical consolidation, scale advantages andweaker demands for defensive actions to raise productivity.     

Health and infrastructure in a model of endogenous growth

This paper studies the optimal allocation of government spending between infrastructure and health (which affects labor productivity as well as household utility) in an endogenous growth framework. A key feature of the model is that infrastructure affects not only the production of goods but also the supply of health services. The rate of time preference is also endogenously related to health outcomes. The first part considers the case where health enters as a flow in production and utility, whereas the second focuses on a “stock” approach. Growth- and welfare-maximizing rules for income taxation and the allocation of public spending are derived.     

The economic impact of telecommunications diffusion on UK productivity growth

This paper investigates the relationship between telecommunications infrastructure competition, investment and productivity. Using a novel methodology comprising of econometric modelling and input–output economics, the extent to which telecommunications has contributed to national and sectoral productivity performance is examined. The main findings from this paper suggest that most industries have benefited from the incorporation of advances of telecommunications technology, which might have, amongst other things, emanated from encouraging infrastructure investment, in their production processes.     

浅析转型中的中国经济

从中国目前的经济成就和问题谈起,运用包容性增长和科学发展观的理念和方法来对中国经济发展转型进行考察,并得出与保障中国经济平稳、快速发展相配套的必要措施。     

Money and growth in a cash-in-advance economy with costly credit

This paper develops a stochastic growth model with a cash-in-advance constraint, costly credit, and intermediary services. We study how the behavior of financial intermediaries affects the relationship between economic growth and the monetary system. We show that the payment that intermediaries charge for providing financial services influences the money–growth relationship. When the intermediation cost increases proportionally with credit purchases, we do not observe any influence of growth on the monetary system. When the intermediation cost is not proportional to credit purchases, growth is responsible for a transformation of the monetary system, i.e. money is relatively driven out of the economy as the economy grows.