An evolutionary model of long term cyclical variations of catching up and falling behind

We generalize a single-country model of endogenous growth to the case of a multi-country world economy in which technology transfer and behavioral imitation are the possible means of interaction between countries. The model is evolutionary in the sense that the economies are disaggregated by behaviourally heterogeneous firms, market selection occurs, and the innovation process is uncertain and stochastic. We demonstrate that this structure leads to a complex process of convergence and divergence over time that can be characterized as 1/f noise. Spectral analysis of measures of convergence for six core OECD countries in the period 1870–1989 reveals a similar pattern in the empirical data.     

Entry and growth in a perfectly competitive vintage model

A perfectly competitive vintage-knowledge model of Schumpeterian growth is introduced to study the relation between growth, technology-lifetime, entry, and productivity-dispersion. The incentive to innovate is generated by the productivity-dispersion (latent in traditional vintage models) between new and old plants, rather than by monopoly rents. The model has a unique steady-state REE with endogenous growth. The endogenous extent of entry constitutes a buffer, dampening the effect of research-efficiency and completely neutralizing the effect of population size or population growth rates on per-capita income levels and growth rates. Variations of research-efficiency lead to a negative relation between growth and vintage-lifetime and a non-monotonic relation between growth and productivity-dispersion.     

参数异质性、经济趋同与中国区域经济发展

本文首次采用分量回归方法来研究中国城市间经济的趋同方式。已有文献研究大都采用条件均值回归的实证方法,无法从本质上揭示不同地区本身存在的异质性而导致的增长方式的差别,本文利用中国182个地级及以上城市的数据,先采用OLS方法,然后采用Koenker和Hallock(2001)发展的条件分量回归的方法,对城市之间的经济趋同方式进行了检验。结果表明,与OLS方法不同,我们发现参数异质性的证据,表明不同城市的经济增长方式存在差异。新古典经济增长模型认为存在条件收敛,但分量回归的结论不支持这个预测。我们发现条件收敛不是普遍现象,增长率分布处于低分位点的地区存在条件收敛特点,但对于增长率分布处于高分位点的地区而言,结论并不显著。这一结果对于制定区域经济协调发展的政策非常重要。     

Anticipation effects of technological progress on capital accumulation: a vintage capital approach

Due to embodied technological progress new generations of capital goods are more productive. Therefore, in order to study the effects of technological progress, a model must be analyzed in which different generations of capital goods can be distinguished. We determine in what way the firm adjusts current investments to predictions of technological progress. In the presence of market power we show that a negative anticipation effect occurs, i.e. current investments in recent generations of capital goods decline when faster technological progress will take place in the future, because then it becomes more attractive to wait for new generations of capital goods. In case that only investments in new machines are possible, actually a whole wave of anticipation phases arises.     

我国汽车产业技术赶超的进入成本

本文在对技术赶超进入成本理论进行探讨的基础上,对我国国内汽车产业技术赶超的进入成本条件及成本效应进行了分析,以期明确国内汽车产业技术赶超的进入成本约束状况。     

技术效率、资本深化与地区差异——基于随机前沿模型的中国地区收敛分析

本文提出了基于随机前沿生产函数的地区增长差异分析框架,将各地区劳均产出差距分解为劳均资本差异、经济规模差异和全要素生产率差异三个部分。利用改革时期的省级数据,本文发现尽管要素投入仍然是中国经济增长的主要源泉,但全要素生产率是造成地区差异的重要原因,在地区劳均产出差异中的贡献份额不断提高,将成为今后中国地区增长差异的主要决定力量。而且,1990年以来中国地区全要素生产率呈现出绝对发散趋势,严重的技术扩散壁垒加剧了体制转轨过程中的“马太效应”,短期内地区差距不会随经济发展而缩小,政府需要通过适当的政策对地区发展进行调节,尤其要促进地区间技术扩散,使各地区更好地分享技术创新和体制创新的成果。     

Catching up to the technology frontier: the dichotomy between innovation and imitation

Abstract Using data for 55 developing and developed countries, this research examines the roles of technology transfer, research intensity, educational attainment, and the ability to absorb foreign technology in explaining cross‐country differences in productivity growth. The results show that innovation is an important factor for growth in OECD countries, whereas growth in developing countries is driven by imitation. Furthermore, the interaction between educational attainment and the distance to the frontier is a significant determinant of growth in the overall sample.     

Endogenous innovation and imitation in a model of equilibrium growth

This paper provides a growth model in which innovation as well as imitation occurs. Economic growth is due to product innovations. Innovators driven by the possibility to appropriate monopoly profits do not remain in their monopolistic position forever. Latecoming imitators get into possession of the private knowledge of production through investments in R & D. Imitated products are marketed in oligopolistic markets. Imitation proves to be profitable despite a single factor market and positive imitation costs. A steady-state equilibrium with positive imitation and innovation rates as well as different market structures can be derived. Finally, the effects of industrial policy measures are discussed.     

Leisure time, savings and trade patterns A two-country growth model

This paper proposes a simple two-country endogenous growth model with endogenous consumption, leisure time and wealth accumulation. The model examines possible causes for the world economic growth and the existence and persistence of trade patterns between countries with different preferceces and human capital under internationally free capital mobility. We show how differences in preferences in consumption, leisure time and wealth between the two countries may affect long-run world economic growth.     

Catching up of emerging economies: the role of capital goods imports,FDI inflows,domestic investment and absorptive capacity

We show that the impact of capital goods imports and FDI inflows on economic convergence depends on the local capacity of emerging economies to absorb superior technologies.     

Bargaining power, effective demand and technical progress: a Kaleckian model of growth

Following the Kaleckian tradition, this paper presents a demand-ledgrowth model in which the distribution of income is fully endogenised.This is done by introducing claims on income by workers andfirms. The bargaining power of these two groups affects, throughdistribution, the patterns of accumulation and inflation. Inturn, the bargaining power of workers is affected by the rateof change of employment. The paper discusses the model's static and dynamic implications,including the effects of exogenous and induced technical progress.The model confirms all the typical Kaleckian results, includingthe fact that increases in real wages may lead to acceleratingaccumulation as well as inflation. It also produces a new result:it is possible that an increase in the rate of change of labourproductivity may not lead to an increase in the rate of changeof employment.     

Uniqueness and comparative statics of Nash equilibrium in a tariff retaliation model

This paper considers uniqueness and comparative statics of Nash equilibrium of a tariff retaliation model. The approach to the problem is geometrical and reminiscent of the analysis for the free trade competitive equilibrium. If the countries have constant elasticity of substitution utility functions, some simple conditions can be used to prove uniqueness of the Nash equilibrium of the tariff retaliation game. The welfare effects of endowment changes are analyzed in terms of the standard terms of trade and volume of trade effects. If the elasticity of substitution of one of the countries is sufficiently high, immiserizing growth will not occur.      

Time series analysis of economic growth rate series in Nigeria: structural breaks,non-linearities and reasons behind the recent recession

This article deals with the modelling of growth rate time series in Nigeria with a view of detecting its statistical properties, structural breaks and non-linearities. We employ both fractional integration and structural break time series techniques in modelling the annual growth rate series of the Nigerian GDP growth rate for about 55 years. The data span between 1960 and 2017. The results show that Nigerian growth rate is unstable with non-linearities and long-range dependence structures. We also investigate what might explain these features and conclude that erratic political institutions, associated with poor economic management and insecurity in Nigeria, among others, in the decades after independence are the root causes of non-linearities observed, which have also led to the subsequent recent economic recession in Nigeria.     

A sequential approach to regional integration: The European Union and Central and Eastern Europe

This paper develops a theory of optimal sequencing of regional integration and applies it to the specific question of Central and Eastern European countries (CEECs) and the EU. We show that the timing of transition and integration has implications for the long-term trade structure of Europe. In this model the interest to integrate the CEECs comes from harmonization of policies to attract industries. Without integration, European countries will try to inefficiently protect their industries. Because of the transfers implied by the CAP and the Structural Policies, the EU delays enlargement until the CEECs have sufficiently converged. CEECs might at this point prefer to stay outside the EU and attract industries by offering them more generous protection than the EU. Such timing may be inefficient ex ante for all countries because it may prevent full European integration in the long run, inducing firms to relocate outside of the EU and governments in the EU and the CEECs to inefficiently protect industry. During the transition, all countries benefit from regional integration among the CEECs.     

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。     

Convergence speed and preference externalities in a one-sector model with elastic labor supply

In a one-sector model with elastic labor supply where consumption and leisure externalities are incorporated, we examine the impact of preference externalities on convergence speed.     

Catching up: The role of demand, supply and regulated price effects on the real exchange rates of four accession countries

The main aim of this paper is to examine the exchange rate behaviour of a group of four transitional, EU accession countries, with a view to making policy recommendations regarding their full accession to the European Monetary Union. We employ a dynamic OLS panel estimator to investigate the relative importance of demand and supply influences on the exchange rates of these countries. Our analysis shows that both supply‐ and demand‐side effects are important for the accession countries, although their overall effect on inflation differentials and competitiveness seems to be small. An additional focus of the paper is the examination of the role that administrated, or regulated, prices and the productivity of the distribution sector play in the real exchange rate dynamics. Using a unique database we show that administrative prices have been a powerful force behind price and real exchange developments for our group of accession countries. The distribution sector is shown to have an independent effect on the internal price ratio over and above that generated by the Balassa–Samuelson effect.     

国有土地出让视角下的中国城市经济增长趋同研究

改革开放以来中国经济增长的历史经验表明,土地要素的市场化交易不仅极大地促进了资本的形成和城市化的推进,而且有效地增加了地方政府的财政收入,缓解了分税制改革带来的地方财政收支责任失衡,从而促进了经济增长。本文运用使用附加人力资本和土地出让的四要素CES生产技术模型构造了城市经济增长的面板趋同方程,考察了中国土地资源配置市场化改革的核心-国有土地使用权出让对中国城市经济增长趋同性的实质性影响。     

Institutions, infrastructure, and economic growth

This paper develops a structural model of infrastructure and output growth that takes account of institutional and economic factors that mediate in the infrastructure–GDP interactions. Cross-country estimates of the model indicate that the contribution of infrastructure services to GDP is substantial and, in general, exceeds the cost of provision of those services. The results also shed light on the factors that shape a country's response to its infrastructure needs and offer policy implications for facilitating the removal of infrastructure inadequacies.