The Role of Real Wages,Productivity, and Fiscal Policy in Germany's Great Depression 1928–1937

We study the behavior of output, employment, consumption, and investment in Germany during the Great Depression of 1928–1937. In this time period, real wages were countercyclical, and productivity and fiscal policy were procyclical. We use the neoclassical growth model to investigate how much these factors contribute to the depression. We find that real wages, which were significantly above their market clearing levels, were the most important factor for the economic decline in the depression. Changes in productivity and fiscal policy were also important for the decline and recovery. Even though our analysis is limited to a small number of factors, the model accounts surprisingly well for the depression in Germany. Journal of Economic Literature Classification Numbers: E13, E32, E62, N14, O47.     

The Great Depression in Canada and the United States: A Neoclassical Perspective

Canada suffered a major depression from 1929 to 1939. In terms of output it was similar to the Great Depression in the United States. However, total factor productivity (TFP) in Canada did not recover relative to trend, while in the United States TFP had recovered by 1937. We find that the neoclassical growth model, with TFP treated as exogenous, can account for over half of the decline in output relative to trend in Canada. In contrast, we find that conventional explanations for the Great Depression—monetary shocks, terms of trade shocks, and labor market and competition policies—do not work for Canada. Journal of Economic Literature Classification Numbers: E30, N12, N42.     

基于STR模型的中国宏观经济 周期拐点的识别与预测

本文应用平滑转换模型（STR）对我国经济周期的运行特点及拐点识别进行深入研究,并成功识别出经济周期拐点。研究发现我国GDP机制转换发生在自身滞后1期,增长率96%是扩张与收缩的临界点;固定投资机制转换发生在自身的滞后4期,增长率19%是扩张与收缩的临界点;固定资产投资对GDP的拉动效应具有较为缓慢的调整特征和滞后效应,机制转换发生在固定资产投资的滞后2期。     

The French Depression in the 1930s

This paper shows that, first, in contradiction with the conventional view regarding the French depression, there are more similarities than differences between the French and U.S. episodes in the 1930s, which suggests the need for an explanation with a similar cause; second, technological change (regression or stagnation) is neither sufficient nor necessary to account for the French depression; and third, institutional and market regulation changes provide an explanation that is quantitatively plausible, but the causes of those changes are still to be explained. Journal of Economic Literature Classification Numbers: E30, N14, N44.     

Globalization and growth in the low income African countries with the extreme bounds analysis

The relationship between globalization and economic growth, especially in the poorer developing countries, is controversial. Previous studies have used single globalization indicators such as the ratio of exports plus imports to GDP. This paper uses a comprehensive measure of a globalization of Dreher (2006), which is based on measures of globalization of the economic, social and political sectors. Panel data estimates with data of 21 low income African countries show a small but significant positive permanent growth effects. The sensitivity of this growth effect is examined with the extreme bounds analysis (EBA). Contrary to the findings by Levine and Renelt (1992) that cross-country growth relationships are fragile, the effects of globalization and some other determinants of the long run growth rate are found to be robust by EBA.     

Innovation, cycles and growth

The purpose of this paper is to present a model of growth with endogenous fluctuations. The main feature of our model is that it throws light on the relationships between long waves and business cycles in the economy. The driving forces in the model work in this way: endogenous R&D investment creates new cumulative knowledge. When this knowledge reaches a threshold H*, radical innovations occur which generate productivity growth via the substitution of old capital with new capital. These disruptive events appear recurrently, generating long waves and revitalizing the growth process. Short-term cycles in the model come from the interactions between these innovation-driven transformations and certain prey-predator mechanisms that involve the labor market. We find that our model presents excellent properties: the model generates endogenous cyclical growth as a disequilibrium process; persistent and irregular short cycles appear interwoven with the long waves; and there is a strong significant interaction between both kinds of fluctuations.     

Income inequality and economic incentives: Is there an equity–efficiency tradeoff?

What is the basis and direction of relationship between income inequality and economic growth? The equity versus efficiency dictum which predicts a positive relationship between inequality, capital formation, and real GDP growth—emphasizes the importance of economic incentives. Subsequently, this was challenged by the incomplete markets and political outcomes theories, because of increasing empirical evidence of an inverse relationship between income inequality and economic growth. In this paper, we offer a further explanation of the basis and nature of the inequality–capital–growth relationship which emphasizes the divergence between savings and investment. For the United States over the period 1970–2006, we have found no empirical evidence for the support of the equity versus efficiency hypothesis—that economic incentives are necessary for capital accumulation and growth. In fact, it was discovered that in most cases, inequality has had little or no impact on movements in the US capital stock, net investment, and consequently, economic growth. Another interesting finding of this study was that inequality exhibits hysteresis—implying that any positive shock, such as the dot-com boom, can lead to persistent and enduring increases in inequality.     

Why are initial estimates of productivity growth so unreliable?

This paper argues that initial estimates of productivity growth will tend to be much less reliable than those of most other macroeconomic aggregates, such as output or employment growth. Two distinct factors complicate productivity measurement. (1) When production increases, factor inputs typically increase as well. Productivity growth is therefore typically less variable than output growth, meaning that measurement errors will tend to be relatively more important. (2) Revisions to published estimates of production and factor inputs tend to be less highly correlated than the published estimates themselves. This further increases the impact of data revisions on published productivity estimates.To assess the extent of these problems in practice, we detail the importance of historical revisions to the most commonly-used measures of US aggregate productivity growth, expanding on previous empirical work by Aruoba (2008) and Anderson and Kliesen (2006). We find that such revisions have contributed substantially to policymakers’ forecast errors for US productivity growth.     

What is the optimal rate of R&D investment to maximize productivity growth?

Governments in modern economies devote much policy attention to enhancing productivity and continue to emphasize its drivers such as investment in R&D. This paper analyzes the relationship between productivity growth and levels of R&D investments. The econometric analysis shows that more than 65 per cent of productivity growth variance is due to its dependence on gross domestic expenditure on R&D expressed as percentage of GDP (GERD). Economic analysis shows that productivity growth = f(GERD) is a concave function downwards due to diminishing returns to research investments. In addition, the research shows that the range of GERD between 2.3 per cent and 2.6 per cent maximizes the long-run impact on productivity growth and it is the key to sustained productivity and technology improvements that are becoming more and more necessary to modern economic growth.     

A multi-region model of economic growth with human capital and negative externalities in innovation

We use a multi-region model and provide the first theoretical analysis of the effects of human capital use and a particular kind of innovative activity on economic growth. In each of the N heterogeneous regions in our model, consumers have constant relative risk aversion preferences, there are negative externalities in innovation, and there are three kinds of manufacturing activities involving the production of blueprints for inputs or machines, the inputs or machines themselves, and a single final good for consumption. Our analysis generates four salient findings. First, for each of the N regions, we define a balanced growth path equilibrium, we characterize the market clearing factor prices, and we determine the free entry condition in the R&D sector. Second, we show that without growth in human capital, there is no sustained economic growth in any of the N regions. Third, we show that human capital growth generates sustained economic growth in each of the N regions. Finally, when discussing the above three findings, we shed light on the spatial dimensions of economic growth in our multi-region aggregate economy.     

Regional economic growth disparities: A political economy perspective

Regional differences in economic growth have been observed within many countries. Our story emphasises three region-specific factors driving growth—capital, labour and political factors. Conditional on differences in production factor (i.e., labour and capital) variations across democratic states, what role do differences in underlying “political factors” across regions play in accounting for regional growth disparities? We build a political economy model of endogenous growth where regions have the same political institutions, but experience different (and estimable) distributions over voter political biases (i.e., our “political factors”). In our model, political factors affect regional productivity as a consequence of politico-economic equilibrium. We discipline our regional growth accounting exercises by calibrating/estimating each model to American state-level economic and political-survey data. We show that the capital factor is the predominant driving force behind growth in American states. Nevertheless, regional variations in distributions of voter's political biases also account a great deal for regional growth disparities. We also evaluate how much politics would have distorted agents' welfare and regional growth, were regional economies given the opportunity to live under an efficient social planner's allocation system; and, if agents were to live under the same democratic system but where all voters have equal voting influence.     

Long run time series tests of constant steady-state growth

We propose a new methodology to study the stability of steady-state growth. Long-run GDP per capita can be characterized by: (1) the linear trend hypothesis, where there are no long-run changes in GDP levels or growth rates, (2) the level shift hypothesis, where there are long-run level shifts, but not changes in growth rates, and (3) the growth shift hypothesis, where there are long-run changes in both GDP levels and growth rates. We formally test these hypotheses using time series techniques with over 139 years of data. The results are not favorable to the hypothesis of constant steady-state growth. While we find evidence supporting the linear trend hypothesis for the United States and Canada and the level shift hypothesis for three additional OECD countries, the growth shift hypothesis is supported for seven OECD and four Asian countries. The results are not driven by transition dynamics.     

Governance,resources and growth

Using a large sample of 50 oil exporting countries, we extend the prior literature by examining the role of quality of governance (QOG) on economic growth under the condition of heterogeneity and cross-sectional independence in errors. We document that QOG is by far the most consistent driver of economic growth both in the long- and short-run. Our result is robust to an alternative and an inverse measure of QOG. We also investigate a number of mediating factors contributing the QOG and economic growth linkage. We show that the long-run positive effect of QOG on economic growth is stronger in countries with higher information communication technology (ICT) diffusion; and such effect works only in countries with higher social capital, economic globalization, and financial development (FD). We also show that the ‘resource curse’ or ‘resource blessing’ debate in growth literature is sensitive to methodological choices.     

Perspectives on International Trends and Dynamics in Population and Consumption

There are increasing concerns that global environmental limits may soon be met as a result of increasing numbers of people coupled with increasing consumption of resources. However, the current level and rates of growth in both consumption and population vary systematically among countries grouped according to income levels. Many high income countries have population growth rates at close to replacement levels, but their per capita consumption is consistently several times higher than low income countries. Low income countries need to grow out of poverty and have high population growth rates. Using current population structures for India and the USA in an age-structured demographic model, and simple projections of annual reductions in fertility or consumption per capita over the next 50 years, we show that while reductions in both consumption and fertility are necessary to stabilize impacts, there are short term gains from consumption reductions in high income countries such as the USA, and long term gains from early fertility reductions in growing economies such as India.     

The engine of growth or its handmaiden?

This paper presents an analysis of time-series data for the countries in the Summers-Heston (1991) data set, in an attempt to ascertain the evidence for or against the export-led growth hypothesis. We find that standard methods of detecting export-led growth using Granger-causality tests may give misleading results if imports are not included in the system being analyzed. For this reason, our main statistical tool is the measure of conditional linear feedback developed by Geweke (1984), which allows us to examine the relationship between export growth and income growth while controlling for the growth of imports. These measures have two additional features which make them attractive for our work. First, they go beyond meredetection of evidence for export-led growth, to provide a measurement of itsstrength. Second, they enable us to determine the temporal pattern of the response of income to exports. In some cases export-led growth is a long-run phenomenon, in the sense that export promotion strategies adopted today have their strongest effect after eight to 16 years. In other cases the opposite is true; exports have their greatest influence in the short run (less than four years). We find modest support for the export-led growth hypothesis, if “support” is taken to mean a unidirectional causal ordering. Conditional on import growth, we find a causal ordering from export growth to income growth in 30 of the 126 countries analyzed; 25 have the reverse ordering. Using a weaker notion of “support”—stronger conditional feedback from exports to income than vice versa, 65 of the 126 countries support the export-led growth hypothesis, although the difference in strength is small. Finally, we find that for the “Asian Tiger” countries of the Pacific Rim, the relationship between export growth and output growth becomes clearer when conditioned on human capital and investment growth as well as import growth.     

货币升值的后果--基于中国经济特征事实的理论框架

本文在一个贸易品/非贸易品两部门模型中,讨论了真实汇率外生条件下部门之间全要素生产率变化对产业结构与贸易余额的影响。我们发现,在保持名义有效汇率固定与国内物价水平稳定的货币政策组合下,市场经济体制改革所带来的贸易品部门相对非贸易品部门更快的全要素生产率进步所带来的不仅是经济增长,还会造成(1)工业/服务业产业结构扭曲;(2)贸易顺差扩大;(3)工资水平下降,并阻碍了农村劳动力向城市转移;(4)工资下降与利润率上升,收入分配恶化。解决上述问题的关键在于人民币汇率水平调整与非贸易品部门市场化改革和全要素生产率提高。     

1979–2001: A Greek great depression through the lens of neoclassical growth theory

This paper focuses on the performance of the Greek economy during the period 1979–2001. Following the work of Cole and Ohanian (1999) and Kehoe and Prescott (2002, 2007) this twenty year episode can be characterized as a great depression. We use this methodology and ask whether, given the observed exogenous path of total factor productivity (TFP), the neoclassical growth model can generate an equilibrium behavior that has growth accounting characteristics similar to those in the data. The answer is affirmative: Changes in TFP are crucial in accounting for the Greek great depression. Our model economy predicts a big decline of economic activity during the 80s and until the mid-90s and a strong recovery for the period 1995–2001. This is exactly what happened in Greece. Moreover, the model successfully mimics the actual data with respect to the timing of peaks and troughs and the time paths of most key macroeconomic variables. However, puzzles between theory's predictions and the observed data are not missing. For instance, things are (not surprisingly for the neoclassical growth model) less successful when it comes to the labor factor.     

Is foreign trade important for regional growth? Empirical evidence from Portugal

The aim of this study is to investigate whether openness, export shares or trade balances affect regional growth in Portugal. Human capital is also considered as a conditional factor to growth, expressed by the rate of success in high school education. Thus, we analyse whether the combination of international trade and human capital is relevant to explain regional growth in Portugal and how it affects the convergence process between regions. In the empirical analysis, interaction terms are introduced to explore the existence of different performances between regions of the Littoral and the Interior. As an alternative to the traditional approach that considers the population growth rate, we include the share of sectoral employment aiming to capture labour specialisation in the main sectors of economic activity and measure its impact on regional growth.The empirical analysis estimates the conditional convergence model of the Barro's type, applied to the Portuguese NUTS3 regions for the period 1996-2005. The GMM estimation approach applied to regional panel data reveals that factors associated with external trade, human capital and sectoral labour share (especially of the industrial sector) are relevant to explain regional growth and convergence in Portugal.     

Growth with many agents and wages paid ex ante

In this paper, we consider a one-sector model of economic growth with several infinitely-lived heterogeneous agents, who are endowed with diverse discount factors as well as preferences over consumption. In line with the classical Ramsey model, agents are not allowed to borrow against future income. Unlike the traditional assumption of ex post wage payment, wages are paid ex ante in our model. We first explain the difference between the assumptions of wages being paid ex ante and wages being paid ex post in the framework of a simple illustrative two-class model. Our main result shows that in contrast to the many-agent Ramsey model with ex post wage payment, the capital stock sequence converges to the steady state stock irrespective of production technology employed by the firms. Further, all impatient agents own zero capital stock, whereas the most patient agent owns the entire capital stock from some time onward. Thus, we have shown that a slight modification in the timing of wage payment in growth models can lead to significant changes in the stability properties of equilibrium dynamics.     

On the interaction between public and private capital in economic growth

This paper introduces two forms of interaction between private and public capital in an endogenous growth model in which productive government expenditure takes the form of a stock-variable and public capital is used in part as an input in the production of final output and in part to increase its own supply. While the first form of interaction involves the stocks of the two capital-goods and takes place within the final output sector through the specification of the aggregate production function (Cobb?CDouglas vs. CES), the second one concerns the rates of investment in the two kinds of capital. The share of productive public expenditure devoted to output production can be either exogenous or endogenous. Our results suggest that when this share is exogenous, along the balanced growth path the optimal growth rate of the economy is a positive function of the degree of complementarity between the two forms of investment. When the share of productive public expenditure devoted to output production is endogenous, the public capital share in GDP becomes, along with the model??s preference parameters, an important determinant of the economy??s long run growth. We also find that the optimal growth rate is an increasing function of the elasticity of substitution between public and private capital inputs in goods production, and is independent of the complementarity/substitutability between the two forms of investment.