Walrasian General Equilibrium Allocations and Dynamics in Two-Sector Growth Models

This paper analyzes and solves miniature Walrasian general equilibrium systems of momentary and moving equilibria. The Walrasian framework encompasses the fundamental neoclassical and classical two‐sector growth models; the families of solutions of steady‐state and persistent growth per capita in various competitive two‐sector economies are parametrically characterized. Moreover, the endogenous behavior of relative prices and the sectoral allocation of primary factors are analyzed in detail. The technology parameters of the capital good industry are decisive for obtaining long‐run per capita growth in closed (global) economies. A review of the literature complements the theorems on the general equilibrium allocations, dynamic systems, and the time paths of Walrasian two‐sector economies.     

Total factor productivity differences: Appropriate technology vs. efficiency

Recent development and growth accounting studies have established that total factor productivity is an important source of cross-country differences in income levels and growth rates. This paper makes two contributions. First, it examines the sensitivity of the development accounting results to the Cobb-Douglas specification of the production function. Second, within the Cobb-Douglas framework, it weighs evidence of the two alternative explanations of total factor productivity differences: the inefficiency view and the appropriate technology view. To accomplish these tasks, the world production frontier is estimated using a nonparametric deterministic approach known as data envelopment analysis. I find that the fraction of income differences explained by physical and human capital increases from 32% to 55% when departing from the Cobb-Douglas assumption. There is also evidence consistent with the appropriate technology view; countries with an inadequate mix of inputs are unable to access the most productive technologies. Moreover, the world technology frontier appears to be shifting out faster at input combinations close to that of the R&D leader. However, inefficiency appears to be the main explanation for low incomes throughout the world; it explains 43% of output variation in 1995, and its importance has increased over time.     

Of Yeast and Mushrooms: Patterns of Industry-Level Productivity Growth

Abstract. In this paper we analyse labour productivity growth in the United States, four European countries (France, Germany, the Netherlands and United Kingdom), Australia and Canada between 1987 and 2003 from an industry perspective. Rather than analysing broad industry groups, we compare the pattern of growth in all industries through Harberger diagrams. We introduce new summary measures, which indicate the pervasiveness of growth patterns. These indicators show that investment in both information and communication technology (ICT) and non-ICT capital is fairly balanced or 'yeasty', driven by overall macro-economic conditions. However, growth of total factor productivity (TFP) is much more localized or 'mushroom-like'. In particular we find a clear distinction between countries in continental Europe, in which TFP is decelerating after 1995 and becoming more localized, and Anglo-Saxon countries in which TFP growth is accelerating and becoming more broad-based, especially after 2000. The increased breadth of Anglo-Saxon TFP growth is consistent with delayed effects of intangible investments that are complementary to ICT investments.     

Growth, habit formation, and catching-up with the Joneses

When habits are introduced multiplicatively in a capital accumulation model, the consumers’ objective function might fail to be concave. In this paper, we provide conditions aimed at guaranteeing the existence of interior solutions to the consumers’ problem. We also characterize the equilibrium path of two growth models with multiplicative habits: the internal habit formation model, where individual habits coincide with own past consumption, and the external habit formation (or catching-up with the Joneses) model, where habits arise from the average past consumption in the economy. We show that the introduction of external habits makes the equilibrium path inefficient. We characterize in this context the optimal tax policy.     

Intangible Investment and Changing Sources of Growth in Korea

We examine how intangible investments change the sources of growth in the Korean economy. After constructing a novel industry‐level data set on intangibles, we estimate the contribution of intangible‐intensive industries and other industries to aggregate productivity growth in 1981–2008. The contribution of intangible‐intensive industries to aggregate labour productivity growth has significantly increased, whereas that of other industries has substantially decreased. The increased contribution of intangible‐intensive industries is mainly associated with total factor productivity growth rather than with input growth. This suggests that innovations related to intangible investments in these industries might become a new key source of productivity growth in Korea.     

Information-consistent learning and shifts in long-run productivity

Recent macroeconomic research has incorporated learning in an inconsistent manner by assuming agents learn with less information than they use in optimization. We present an information-consistent learning framework and illustrate the effects of violating information-consistency.     

Sectoral Productivity in the United States: Recent Developments and the Role of IT

Abstract. This paper introduces new estimates of recent productivity developments in the United States, using an appropriate theoretical framework for aggregating industry multi-factor productivity (MFP) to sectors and the total economy. Our work sheds light on the sources of the continued strong performance of US productivity since 2000. We find that the major sectoral players in the late 1990s pickup were not contributors to the more recent surge in productivity. Rather, striking gains in MFP in the finance and business service sector, a resurgence in MFP growth in the industrial sector, and an end to drops elsewhere more than account for the aggregate acceleration in productivity in recent years. Further, some evidence is found for a link between IT intensity and the recent productivity acceleration.     

The “V-factor”: Distribution,timing and correlates of the great Indian growth turnaround

We analyze a panel of output series for India, disaggregated by 15 states and 14 broad industry groups. Using principal components (Bai, 2004; Bai and Ng, 2004) we find that a single common “V-factor” captures well the significant shift in the cross-sectional distribution of state-sectoral output growth rates since the 2nd half of the 1980s. The timing of the turnaround implied by the V-factor is more closely related to the pattern of policy reforms than has been found in previous research. Regression-based analysis also provides some insights into the uneven distribution of the turnaround across Indian states.     

The pattern of specialization and economic growth: The resource curse hypothesis revisited

This paper explores the relation between countries’ pattern of trade specialization and long-term economic growth. It shows that countries specializing in the export of natural resource based products only fail to grow if they do not succeed in diversifying their economies and export structure. This conclusion follows from an empirical investigation that has three innovative features. First, it uses a dynamic panel data analysis. Secondly, it employs disaggregated trade data sets to elaborate different measures of trade specialization that distinguish between unprocessed and manufactured natural resource products and are informative about the countries’ trade diversification experience, their link to world demand trends and involvement in intra-industry trade. The final innovative aspect of the paper relates to our empirical findings: it is only specialization in unprocessed natural resource products that slows down economic growth, as it impedes the emergence of more dynamic patterns of trade specialization.     

Openness can be good for growth: The role of policy complementarities

This paper studies how the effect of trade openness on economic growth may depend on complementary reforms that help a country take advantage of international competition. This issue is illustrated with a simple Harris–Todaro model where welfare gains after trade openness depend on the degree of labor market flexibility. The paper then presents cross-country, panel-data evidence on how the growth effect of openness may depend on a variety of structural characteristics. For this purpose, the empirical section uses a non-linear growth regression specification that interacts a proxy of trade openness with proxies of educational investment, financial depth, inflation stabilization, public infrastructure, governance, labor market flexibility, ease of firm entry, and ease of firm exit. The paper concludes that the growth effects of openness may be significantly improved if certain complementary reforms are undertaken.     

Inflationary Financing of Government Expenditure in an Endogenous Growth Model

This paper analyses the role of inflation in economies with endogenous growth and congestion in public services. Optimal policy rules are derived for public services and investment. The other findings are as follows. Monetary policy should maximize economic growth. The more inefficient the public sector is, the higher the growth‐maximizing inflation rate is. If a currency union accepts a new member with an inefficient public sector, this will boost inflation in the union and decrease growth and welfare in all member economies of the union.     

Currency demand,new technology,and the adoption of electronic money: Micro evidence from Japan

We estimate currency demand functions conditional on electronic money adoption with household-level survey data from Japan under an Instrumental Quantile Regression framework. Contrary to theoretical predictions, our results suggest that users of electronic money hold more currency than non-users.     

Business cycle and level accounting: the case of Portugal

This paper studies what accounts for the recent business cycles phenomena in Portugal and why it is depressed relatively to the United States. The business accounting procedure applied here suggests that most of the changes in output per worker in Portugal over the period (mainly, from 1979 to 1991) can be attributed to changes in economic efficiency. For instance, the strong economic recovery in output per worker just after Portugal joined the European Union until the first years of the 1990s can be essentially attributed to improvements in economic efficiency. From 1979 to 2000, Portugal caught up with the industrial leader. Its output per worker is currently depressed by about 46% relative to the United States level (it was depressed by 57% in 1979). In the 1980s all of this depression in output per worker relative to the United States was due to the productivity factor. By 2000 Portugal depression relative to the United States was a mix of the French and Japanese depression. The labor factor accounted for roughly 24% of this depression, while the economic efficiency accounted by about 89%.      

Vintage capital and the dynamics of the AK model

This paper analyzes the equilibrium dynamics of an AK-type endogenous growth model with vintage capital. The inclusion of vintage capital leads to oscillatory dynamics governed by replacement echoes, which additionally influence the intercept of the balanced growth path. These features, which are in sharp contrast to those from the standard AK model, can contribute to explaining the short-run deviations observed between investment and growth rates time series. To characterize the optimal solutions of the model we develop analytical and numerical methods that should be of interest for the general resolution of endogenous growth models with vintage capital.     

Non linear and asymmetric linkages between real growth in the Euro area and global financial market conditions: New evidence

This paper deals with transition mechanisms through which financial market conditions affect real economic growth in the Euro area. The informational content of financial variables for predicting real economic growth is assessed, allowing for asymmetric responses to shocks. A nonlinear framework is developed based on a smooth transition model for which the effects of shocks can vary across business cycles when financial indicators modify both the endogenous and state variables. Global financial variables are shown to significantly affect real growth in the Euro area, particularly during periods of recession. Changes in stock market index and yield slope have asymmetric effects on real growth. In recessionary periods, the slope of the US yield curve does not have a significant impact on growth in the Euro area.     

Growth miracles and failures in a Markov switching classification model of growth

In this paper economic growth is interpreted as a sequence of transitions between distinct growth regimes that countries visit with different frequencies. Countries featuring similar growth dynamics are endogenously grouped into three different clusters. The first cluster comprises successful countries that are characterized by lengthy periods of high or very high growth. Moderately successful countries in the second cluster experience both periods of reasonable growth and periods of stagnation, whereas failing countries in the third cluster suffer from highly volatile growth rates with frequent episodes of crisis. Successful countries are characterized by better initial conditions, policies and institutions compared to the other countries. Neither initial conditions nor institutions distinguish moderately successful from failing countries; what makes them different is policy in the form of investments into infrastructure and human capital, trade liberalization and limited policy volatility.     

收敛抑或发散:来自中国区域经济非平衡增长的经验证据

按照共同的确定性线性时间趋势,可将我国28个省市自治区划分为四个区域（直辖市、经济发达、经济较发达和经济落后区域）,这些区域的经济增长存在着四个“俱乐部”收敛的特征。同时,在直辖市和经济发达区域的“俱乐部”之间还存在着绝对β-收敛的趋势。另外,在经济发达、经济较发达和经济落后区域的“俱乐部”之间,经济差距存在显著的持续扩大趋势。可以证明中国区域经济平衡非增长现象严重,贫富差距逐步扩大。     

Growth,Convergence, and Social Cohesion in the European Union

The aim of this paper is to analyze the economic and social cohesion in the European Union. There are different factors to explain the convergence process and besides, empirical findings are not conclusive. To the European Union, GDP per head interregional differences have decreased for certain periods but it has remained unchanged or even increased for others periods. The second report on the economic and social cohesion indicates that some decades are necessary to eliminate regional differences. These differences in regional GDP are mainly explained by differences in their productive structures, degree of innovate activity, communications structures, which depend on the relative level of transport infrastructures, and manpower qualifications. This analysis allows us to obtain some conclusions to the economic policies and the social cohesion. A preliminary version of this paper was presented in the 57th International Atlantic Conference, held in Lisbon, Portugal, March 10–14, 2004.     

Are external shocks responsible for the instability of output in low-income countries?

External shocks, such as commodity price fluctuations, natural disasters, and the role of the international economy, are often blamed for the poor economic performance of low-income countries. This paper quantifies the impact of these different external shocks using a panel vector auto-regression approach and determines their contributions to output volatility in low-income countries. We find that they can only explain a small fraction of the output variance of a typical low-income country. Other factors, most likely internal causes, are the main source of fluctuations. From a quantitative perspective, the output effect of external shocks is typically small in absolute terms, but significant relative to the historic performance of these countries.