论卓越经营模式与6西格玛的互补、兼容和整合

本文基于对质量管理发展历史的回顾，分析了卓越经营模式和6西格玛这两个当代质量管理前沿理论的内涵和特点，论述了二者之间的互补和兼容关系，提出了企业如何进行整合推进的策略建议。     

Gender, Time Use, and Public Policy over the Life Cycle

In this paper we compare gender differences in the allocationof time to market work, domestic work, child care, and leisureover the life cycle. Time-use profiles for these activity categoriesare constructed on survey data for three countries: Australia,the UK, and Germany. We discuss the extent to which gender differencesand life-cycle variation in time use can be explained by publicpolicy, focusing on the tax treatment of the female partnerand on access to high-quality, affordable child care. Profilesof time use, earnings, and taxes are compared over the lifecycle defined on age as well as on phases that represent thekey transitions in the life cycle of a typical household. Ourcontention is that, given the decision to have children, life-cycletime use and consumption decisions of households are determinedby them and by public policy. Before children arrive, the adultmembers of the household have high labour supplies and plentyof leisure. The presence of pre-school children, in combinationwith the tax treatment of the second earner's income and thecost of bought-in child care, dramatically change the patternof time use, leading to large falls in female labour supply.We also highlight the fact that, in the three countries we study,female labour supply exhibits a very high degree of heterogeneityafter the arrival of children, and we show that this has importantimplications for public policy. Footnotes ¹ E-mail addresses: pfapps{at}law.usyd.edu.au; ray.rees{at}lrz.uni-muenchen.de     

The sources of bank productivity growth in China during 2002–2009: A disaggregation view

This study investigates the sources of bank productivity growth in China over the period 2002–2009. In order to perform this research, we propose an advanced index – input slack-based productivity index (ISP) – a model that disaggregates total factor productivity growth into each input productivity change. Funds, capital, and employees are chosen as the inputs, whereas loans and other earning assets are outputs in this study. Our results show that technological gains transcend the efficiency regressions and result in total factor productivity growth. More specifically, technical progress in capital productivity reveals the dominant force behind the total factor technical change and productivity improvement. In addition, this paper uses these disaggregation terms to find out the competitive advantages and disadvantages of input usages for each Chinese bank. These findings indicate that the ISP index provides more insights than traditional total factor productivity indices.     

On the dynamics of inequality

The dynamics of inequality are studied in a model of human capital accumulation with credit constraints. This model admits a multiplicity of steady state skill ratios that exhibit varying degrees of inequality across households. The main result studies equilibrium paths. It is shown that an equilibrium sequence of skill ratios must converge monotonically to the smallest steady state that exceeds the initial ratio for that sequence. Convergence is “gradual" in that the steady state is not achieved in finite time. On the other hand, if the initial skill ratio exceeds the largest steady state, convergence to a steady state is immediate.This paper is based on unpublished notes from 1990; see http://www.econ.nyu.edu/user/debraj/DevEcon/Notes/incdist.pdf. Two considerations suggest that these results may be worth reporting in print. First, the existence of a sizeable recent literature indicates that these relatively early notes may have value outside a filing cabinet or a private webpage. Second, Mukul Majumdar’s own research on economic growth with a nonconvex technology is an even earlier precursor to some of this literature, so the current outlet – a special issue in his honor – seems appropriate. Conversations with Glenn Loury simplified the proof of the main result. I thank Dilip Mookherjee for many useful discussions, and two anonymous referees for helpful comments on an earlier draft. Funding from the National Science Foundation under grant number 0241070 is acknowledged. This paper is dedicated with much affection and warm admiration to Mukul Majumdar – or to Mukulda, as I always think of him – on the occasion of his 60th birthday.     

Explaining the slow U.S. recovery: 2010–2017

This paper argues that the slow U.S. recovery after the 2008–2009 recession was due to sluggish government spending. The analysis uses a structural macroeconometric model. Conditional on government policy, the errors in predicting output for the 2009.4–2017.4 period are within what one would expect historically. Productivity and labor force participation are endogenous variables in the model, and so their behaviors in this period are a consequence of the slow growth rather than a cause.     

Asymmetric price adjustment in the small

Analyses of a large retail scanner price data set reveal a new and surprising regularity - small price increases occur more frequently than small price decreases for price changes of up to 10¢. That is, we find asymmetric price adjustment “in the small.” Furthermore, it turns out that inflation offers only a partial explanation for the finding. Indeed, substantial proportion of the asymmetry remains unexplained, even after accounting for the inflation. For example, the asymmetry holds also after excluding periods of inflation from the data, and even for products whose price had not increased. The findings hold for different aggregate and disaggregate measures of inflation and also after allowing for lagged price adjustments.