LAND PRICE,COLLATERAL AND ECONOMIC GROWTH*

This paper extends Kiyotaki and Moore's (1997 ) to an endogenous growth model and investigates the dynamic properties of a growing economy with binding credit constraint when land is used not only as an input of production but also as collateral. There exists a balanced growth path in an economy with binding credit constraint. In response to a once and for all productivity shock, the developed model shows the propagation mechanism among output, capital, bank credit and the land price in terms of the growth rate. The model's tractability allows us to derive interesting qualitative and quantitative findings on business cycles.     

Moore's law and price trends of digital products: the case of smartphones

ABSTRACT

Since the introduction of the iPhone by Apple in 2007 and Google's Android platform in 2009, the two systems have accounted for a total of 90% of the U.S. smartphone market. Apple, however, reaps most of the profit in the industry. In the second quarter of 2016, for example, Apple's iPhone gets 104% of the sector's profit. This suggests that the smartphone market resembles a Stackelberg leadership model. Despite Apple's strong market power, we investigate if the market leader is under pressure to be price competitive. We calculate a quality-adjusted price index for smartphones from 2007 to 2016. Our results show that the average price declines at an average rate of over 27% per year. The price trend is similar to other digit products such as computers, cameras, and portable music players. We observe that the large price decline reflects the effect of Moore's law, which predicts that the capacity of integrated circuits undergoes an exponential growth. The effect of Moore's law is incorporated into the Stackelberg model. We also observe that price trends of other digital products also follow a similar pattern. This suggest that the long-run price trends of digital consumer goods are somewhat independent of the market structures.     

The Impact Of Computer Prices On International Comparisons Of Labour Productivity

This paper analyses the international comparability of methods used to convert the value added of the office and computing machinery sector (OCM) into constant prices for nine OECD countries. It concludes that the variations which exist in the price indexes are largely due to differences in the methods countries use to capture changes in the quality of an industry's output over time. The paper evaluates the impact of these different OCM price indexes on the growth rate of labour productivity during the 1980s by conducting a sensitivity test where the US OCM index is substituted for each of the individual country indexes. This experiment causes the OCM labour productivity growth rate to change by over a factor of ten for several countries. This result suggests that international comparisons of labour productivity should not be made for the OCM sector using the official data, and that labour productivity comparisons of sectors OCM belongs to—non-electrical machinery and fabricated metal products and machinery—should be conducted cautiously, if at all.     

Dynamic management of water transfer between two interconnected river basins

This paper analyzes the dynamic interaction between two regions with interconnected river basins. Precipitation is higher in one river-basin while water productivity is higher in the other. Water transfer increases productivity in the recipient basin, but may cause environmental damage in the donor basin. The recipient faces a trade-off between paying the price of the water transfer, or investing in alternative water supplies to achieve a higher usable water capacity. We analyze the design of this transfer using a dynamic modeling approach, which relies on non-cooperative game theory, and compare solutions with different information structures (Nash open-loop, Nash feedback, and Stackelberg) with the social optimum. We first assume that the equilibrium between supply and demand determines the optimal transfer price and amount. We show that, contrary to the static case, in a realistic dynamic setting in which the recipient uses a feedback information structure the social optimum will not emerge as the equilibrium solution. We then study different leadership situations in the water market and observe that the transfer amount decreases toward a long-run value lower than the transfer under perfect competition, which in turn lays below the social optimum. In consequence, the water in the donor's river-basin river converges to a better quality in the presence of market power. Finally, we numerically compare our results to the Tagus-Segura water transfer described in Ballestero (2004). Welfare gains are compared for the different scenarios. We show that in all dynamic settings, the long-run transfer amount is lower than in Ballestero's static model. Further, we show that the long-run price settles at a lower level than in Ballestero's model, but is still higher than the average cost-based price determined by the Spanish government.     

The Dynamic Effects of the US Productivity Boom on Australia*

How has the USA's ‘new economy’ productivity boom affected Australia? We consider this question using a dynamic multisector growth model of the Australian and US economies. We find that productivity growth in the US durables sector generates small but important gains to Australia. We find that the transmission of growth is generated through increased export demand for agriculture. Consequently, the USA's productivity growth tends to favour Australia's traditional export sectors. Likewise, it increases the relative demand for less skilled labour in Australia and reduces the demand for more skilled labour and higher education.     

房价对城市全要素生产率的影响机制研究——基于Tobit模型实证分析

基于2008—2016年全国35个大中型城市的面板数据,利用Tobit模型和投入导向型的数据包络分析(DEA)方法探究城市房屋销售价格对城市全要素生产率的影响。研究发现：在整体维度城市房价与城市生产率呈现先增加后减少的倒U型曲线,且城市的房价水平超过了“房住不炒”的最高临界值,房价上升的抑制效应显著。房价对于不同人口规模城市的生产率影响具有异质性,在人口规模达到特大城市时,房价与城市生产率呈现倒U型特征,人口规模达到超大城市后,房价与城市生产率倒U型特征消失。不同类型城市房价与城市生产率之间的倒U型关系和城市的异质性特征表明,我国大中型城市应进行房价的“一城一策”精细化调节,“房住不炒”的政策定位具有坚实理论依据和现实必然。     

Persistent income gaps in an occupational choice model with multi‐goods

In this study, we propose a theory to explain why income gaps persist. We model a simple overlapping‐generations economy with three consumption goods and two types of workers. We find that high‐skilled workers have comparative advantage in skill‐intensive jobs and low‐skilled workers in less skill‐intensive jobs. This pattern of comparative advantage determines occupational choices by workers. Combined with human capital accumulation, the occupational choices widen income gaps between families. At the same time, the relative price of skill‐intensive goods declines owing to productivity improvement. The decline holds back income gaps from exploding. The implications of skill‐biased technological change are also examined.     

R&D and Absorptive Capacity: Theory and Empirical Evidence*

This paper presents a single unified framework that integrates the theoretical literature on Schumpeterian endogenous growth and major strands of the empirical literature on R&D, productivity growth and productivity convergence. Starting from a structural model of endogenous growth following Aghion and Howitt (1992, 1998) , we provide microeconomic foundations for the reduced‐form equations for total factor productivity (TFP) growth frequently estimated empirically using industry‐level data. R&D affects both innovation and the assimilation of others’ discoveries (“absorptive capacity”). Long‐run cross‐country differences in productivity emerge endogenously, and the analysis implies that many existing studies underestimate R&D's social rate of return by neglecting absorptive capacity.     

UNEMPLOYMENT AND THE PRODUCTIVITY SLOWDOWN: AN EFFCIENCY WAGE PERSPECTIVE

Many OECD economies suffered a productivity slowdown beginning in the early 1970s. However, the increase in unemployment that followed this slowdown was more pronounced in European economies relative to the USA. In this paper we present an efficiency wage model, which enables us to identify two basic channels through which the productivity slowdown can affect workers' effort incentives. Predictions of the model are consistent with the different trends in unemployment across countries over this period in the face of a similar slowdown in productivity. We also demonstrate how the link between growth and unemployment depends upon labour market institutions in such a way that we can reconcile the mixed empirical results observed in the literature.     

Sudden stops,sectoral reallocations,and the real exchange rate

A sudden stop of capital flows into a developing country tends to be followed by a rapid switch from trade deficits to surpluses, a depreciation of the real exchange rate, and decreases in output and total factor productivity. Substantial reallocation takes place from the nontraded sector to the traded sector. We construct a multisector growth model, calibrate it to the Mexican economy, and use it to analyze Mexico's 1994–95 crisis. When subjected to a sudden stop, the model accounts for the trade balance reversal and the real exchange rate depreciation, but it cannot account for the decreases in GDP and TFP. Extending the model to include labor frictions and variable capital utilization, we still find that it cannot quantitatively account for the dynamics of output and productivity without losing the ability to account for the movements of other variables.     

Export Variety,Revenue, and Productivity in China

In this paper I argue through empirical testing that it is the underlying export variety that helps to explain the strong correlation between China's provincial export revenue and productivity. The empirical model maps export varieties into provincial GDP functions with multiple sectors by price index theory. By employing panel data that covers all 31 executive districts of mainland China from 1998 to 2005, I find that export varieties, via export revenue, significantly affect productivity: it accounts for 44.1% of interprovincial TFP differences and 36.6% of within‐province TFP growth; a 10% increase in export variety leads to a 1.4% productivity growth in China.     

Payment uncertainty, the division of labor, and productivity declines in great depressions

This paper proposes a simple model that formalizes a variant of Ohanian's conjecture explaining the productivity declines observed in the Great Depression [Ohanian, L.E., 2001. Why did productivity fall so much during the Great Depression? American Economic Review 91 (2), 34–38]. If a large payment shock like an asset-price collapse renders many firms insolvent, other economic agents become exposed to a higher risk of not being paid (payment uncertainty). The payment uncertainty causes endogenous disruptions of the division of labor among firms, thereby lowering macroeconomic productivity.The prediction of the model is that productivity correlates negatively with bankruptcies and positively with the cost share of intermediate inputs, which is consistent with the data from depression episodes. The model implies that the so-called failure of macroeconomic policy in the United States during the early 1930s, when a rash of bankruptcies occurred, could actually have been welfare enhancing, since the quick exit of insolvent agents can resolve payment uncertainty quickly.     

Estimating entrants' productivity when prices are unobserved

Entrant firms are constrained to set lower price–cost markups than incumbents due to idiosyncratic demand shocks faced in the startup phase. Productivity indices suffer from micro-level markup variation and underestimate entrants' productivity, when productivity is measured by nominal sales and expenditures but not quantities. This study makes the first attempt to estimate entrants' productivity by controlling for their markup difference, when prices or quantities are unobserved at the firm-level. The econometric methodology introduces demand side into a structural model of production to account for the price variation. The estimation routine deals with the endogeneity due to unobserved productivity using a control function approach, and retrieves average markups for entrants and incumbents together with a markup-adjusted productivity index. My findings show that entrants set on average lower markups than incumbents in Japanese manufacturing. When productivity is adjusted to markups, entrants are as productive as incumbents, while the standard measures of labor and total factor productivity indicate low productivity for entrant firms.     

NON‐SCALE EFFECTS OF INTERNATIONAL TECHNOLOGICAL‐KNOWLEDGE DIFFUSION ON SOUTHERN GROWTH AND WAGES

We develop a dynamic, general equilibrium non‐scale endogenous growth model of North–South technological‐knowledge diffusion by imitation. Countries differ in levels of exogenous productivity, human‐capital levels and R&D capacity. Growth is driven by Northern innovative R&D and the South converges towards the North. Growth is also driven by human‐capital accumulation, scale effects are removed, imitation is only feasible once a threshold distance to the frontier has been attained and is dependent on the South's relative level of employed human capital and on domestic policies promoting R&D. Imitation promotes partial convergence of inter‐country wages and governs the path of intra‐South wage inequality.     

DEMOGRAPHIC SHIFT,POPULATION AGEING AND ECONOMIC GROWTH IN CHINA: A COMPUTABLE GENERAL EQUILIBRIUM ANALYSIS

Abstract. Using a computable general equilibrium (CGE) model and a given ageing profile of the population to forecast the growth path of China's economy during the twenty‐first century, this study finds that: population ageing leads to declining economic growth as labour supply shrinks and the rate of physical capital formation declines; households’ material living standards improve, albeit at a declining rate; falling domestic investment partially offsets declining national savings; and the resulting saving‐investment surplus generates a current account surplus and capital outflows. Finally, the main force that can sustain China's economic growth against the backdrop of population ageing is productivity improvement.     

Learning the master's trade: Apprenticeship and human capital in Ghana

This paper explores the institution of apprenticeship in Ghana. A model is presented where apprenticeship training is idiosyncratic, increasing an individual's productivity in the current firm, but not in any other firm. Still, individuals are willing to fund apprenticeships as they can reap the returns to the specific training of apprenticeship if they manage to acquire the capital required to start their own firms, and replicate the technology and business practice of the apprenticeship firm. Predictions of the model for the productivity and remuneration of different workers are developed and tested using both a linked employer–employee survey of manufacturing firms and a national household survey.     

Structural transformation and productivity growth in India during 1960–2010

In this paper, we examine the role of structural change and sectoral productivity growth in explaining the aggregate productivity of India relative to the United Sates during 1960–2010. We set up a simple two sector general equilibrium model and calibrate it to fit the structural transformation of United States. Our calibrated model for India highlights the relative importance of agricultural productivity growth in explaining its slow process of catching up in terms of aggregate productivity. We show that India could have progressed at a much faster rate and closed a substantial part of its aggregate productivity gap if its agricultural sector had grown at a rate at par with the United States. It is India's relative productivity growth in the non-agricultural sector that explains all the recent success in its closing the aggregate productivity gap with the United States. We also found that an elimination of relative distortion in agriculture in India could result into a modest improvement in the aggregate labour productivity.     

Offshoring,Sourcing Substitution Bias,and the Measurement of Growth in U.S. Gross Domestic Product and Productivity

The decade before the financial crisis of 2008 was a time of large changes in sourcing patterns for manufactured goods, particularly after China's entry into the WTO in 2001. Sourcing substitution reduced the prices paid by wholesale level buyers of these goods, but these price reductions were mostly not captured in the U.S. import price indexes and the U.S. GDP deflator. To find plausible values for sourcing bias we first use data on changes in sourcing patterns over 1997–2007 to predict the effect of the reported price discount from the new emerging market suppliers. Next, we compare adjusted import price indexes for products used for household consumption with consumer price indexes. In the GDP deflator for apparel imports, sourcing bias is found to average 0.6 percent per year, and for durable goods it averages 1 percent per year. During the decade of rapidly changing sourcing patterns, a tenth of the reported speedup in multifactor productivity growth of the U.S. private business sector may have come from sourcing bias in the deflators for imports.     

To integrate with a high- or low-wage country: That is the question

This paper considers the question of whether a country with the intermediate capital–labor ratio is better off forming a free trade area with the higher or lower wage country. Typical analyses of gains from trade ignore the effects of free trade on factor prices. When Europe forms a free trade area with a high-wage economy, the equalized wage rises and rent declines, while the price of the importable declines. Workers unambiguously benefit, but integration has an ambiguous effect on capitalists. However, consumers as a whole benefit from the integration and workers can more than offset the losses of the capitalists. On the other hand, Europe's integration with a low-wage economy raises rent but lowers the wage and the price of the labor-intensive good. Accordingly, capitalists unambiguously benefit, but integration has an ambiguous effect on workers. Again, welfare of all consumers rises and the capitalists can more than offset the losses of workers.     

Unbalanced growth and health care expenditure

Baumol's model of unbalanced growth implies that health care expenditure (HCE) is driven by wage increases in excess of productivity growth. However, it remains unclear whether the HCE in developing countries is affected by the same factor. This paper tests this hypothesis by using China provincial panel data. We show that HCE grows more rapidly if economy‐wide wage growth exceeds productivity growth in China. The results are robust to the use of housing price as an instrumental variable for the economy‐wide nominal wage and the inclusion of real GDP growth, demographic structure, government deficit, pollution emissions and health sector quality as control variables. Furthermore, our findings show that Baumol's cost disease plays a more important role in the less economically developed western regions in which the rural–urban migration is less pronounced.