Working parents and total factor productivity growth

Since 1963, changes in the family composition of the US labor force explain more than half of the variability in US total factor productivity growth. Using the Current Population Survey Annual Social and Economic Supplement, we document the rise of two (and single) working-parent families in the USA. We augment a standard growth-accounting equation to differentiate between parental and nonparental labor inputs and find that accounting for the parental composition of the labor force explains roughly 50 % of total factor productivity growth, the productivity slowdown of the 1970s, and the productivity rise of the 1990s. The parental composition of the workforce also helps to explain labor productivity differences across US states while controlling for differences in the age and gender profile of workers across states does not.     

The US productivity slowdown, the baby boom, and management quality

This paper examines the relationship between the entry of the baby boom into the workforce and the productivity slowdown. Lucas (Bell J Econ 9(2):508–523, 1978) shows how management quality plays a role in determining output. The baby boom’s entry into the workforce resulted in more managers from smaller, pre-baby boom cohorts. These marginal managers were necessarily of lower quality, leading to a drop in total factor productivity. As the boomers aged, this effect was reversed. A calibrated model of managers, workers, and firms suggests that the management effects of the baby boom may explain roughly 20% of the observed productivity slowdown and resurgence.     

Globalization and workplace performance in Canada: Cross-sectional and dynamic analyses of productivity and wage outcomes

We start from the premise that firm productivity differences need to be taken into account in the examination of the determination of wages and, more broadly, earnings inequality. Unlike most sociological studies of globalization, in this study using Canadian data we incorporate direct measurement (of some aspects) of globalization, and examine closely the association between workplace productivity and wages on the one hand, and exporting, foreign ownership and outsourcing on the other. We conduct cross-sectional and dynamic analyses. We find the following: (i) there is a relationship between exporting and productivity across different model specifications; (ii) the effects on productivity kick in when a workplace is substantially rather than marginally engaged in export markets; (iii) productivity increases are markedly greater in workplaces where export intensity has increased in prior periods; (iv) productivity is higher in workplaces that are wholly foreign owned; (v) wages are also associated with productivity and with both exporting and foreign ownership.     

不同年龄组流动人口劳动生产率的差异 ——基于2015年中国流动人口动态监测调查数据的分析

基于2015年中国流动人口动态监测调查数据,采用明瑟工资方程研究了受教育程度和工作经验对不同年龄组流动人口劳动生产率影响的差异问题。结果表明:不同年龄组流动人口的劳动生产率呈倒“U”型分布,30—34岁年龄组的流动人口劳动生产率最高;从总体上看,受教育程度几乎对各个年龄组流动人口的劳动生产率均具有显著的正向影响,且对25—29岁年龄组的影响最大,随着年龄的上升,受教育程度对流动人口劳动生产率的影响呈先递增后递减的趋势,对55岁及以上年龄组的影响不再显著;工作经验仅对15—24岁年龄组流动人口的劳动生产率具有显著的正向影响,对30岁及以上年龄组的影响则显著为负,且工作经验与部分年龄组流动人口的劳动生产率呈“U”型关系。此外,性别、户口类型、流动范围、就业身份、婚姻状况和职业属性等社会基本特征变量对大部分年龄组流动人口的劳动生产率均具有显著的正向影响。     

改革以来中国劳动生产率的增长因素：基于产业结构的分析

改革开放以来,伴随着经济的快速成长,我国的劳动生产率在迅速提高。本文利用指数方法,从产业结构的角度实证分析了改革以来我国劳动生产率的增长因素。结果发现．劳动生产率增长的主要来自产业内部的纯生产率效应,而就业结构变动的贡献既不稳定,也不显著。在产业间劳动生产率差距不断扩大的背景下,本文最后讨论了我国劳动生产率增长中就业结构变动贡献不足的原因。     

相对于生产力而言的中国人口问题——对“中国人口问题”的定性研究

中国人口问题是关系中国经济社会发展的大问题 ,迫切需要解决。但目前对中国人口问题的认识 ,却存在诸多疑义和隐忧。按照马克思主义的方法论 ,应将中国人口问题纳入社会生产力这一终极原因作考察认识 ,并定位定性为 :相对于生产力而言的中国人口问题。缘于此 ,要根据生产力的发展要求来决取中国人口问题的解决     

Can Economic Growth Be Sustained? A Post‐Malthusian Perspective

In the United States and in other economically advanced countries, rapid productivity growth in the material‐producing sectors has been the major source of productivity growth for the entire economy. Over the next several decades, continuing structural change will result in a decline in employment in the material‐producing sectors to near or below 10 percent. A simulation exercise is employed to demonstrate how continued slow productivity growth in the service sectors dampens the rate of productivity growth of the entire economy. It is unlikely that productivity growth in the US economy can be sustained at anywhere near the relatively high rate achieved since the mid‐1990s.     

Relation between exploitation and production in experimental populations ofPoecilia reticulata

Summary In order to make researches on the effect of exploitation upon fish populations, six populations of guppy were maintained during a period of 331 weeks under conditions of space, light, temperature, pH, and food controlled as much as possible. The six populations were divided into three groups two by two: a control group without exploitation, a 10% rate of exploitation group and a 20 and 33% rate of exploitation group. All the populations repeated an increase and a decrease in number and in biomass about once a year. The exploitation affected the age composition in the populations: in the non-exploited population adults occupied the largest part, and the more intensive the exploitation the larger the part fry occupied. The exploitation decreased the biomass of exploited populations, but productivity increased with increasing of of rate of exploitation. The relationship between adult and fry could be represented byRicker's reproduction curve. The form of the curve was changed by an intensity of exploitation. It was thought that exploitation acts as a preventer of aging of populations by removing old fish and results increasing number of fry and productivity.     

Business visits,knowledge diffusion and productivity

We investigate whether labor mobility can be a distinct source of growth by studying the productivity impact of business visits (BVs), vis-à-vis that of other well-known drivers of productivity enhancement. Our analysis uses an unbalanced panel—covering on average 16 sectors per year in ten countries during the period 1998–2011—which combines unique and novel data on BVs sourced from the US National Business Travel Association with Organization for Economic Cooperation and Development (OECD) data on R&D and capital formation. We find that mobility through BVs is an effective mechanism to improve productivity, being about half that obtained by investing in R&D. This relevant finding invites viewing short-term mobility as a strategic mechanism and prospective policy tool to overcome productivity slowdowns and foster economic growth.     

Endogenous age discrimination

This paper shows that hiring discrimination against old workers occurs in imperfect labour markets even if individual productivity does not decrease with age and in the absence of a taste for discrimination. Search and informational frictions generate unemployment, with less productive workers facing higher risks of unemployment. Therefore, the employment status provides a signal for expected productivity. This stigma of unemployment becomes stronger with individual age and reduces the hiring opportunities of older workers. Political measures such as a reduction in dismissal protection can help to restore efficiency.     

Wage subsidies as an anti-discrimination policy

Using the statistical theory of discrimination, we argue that initial wage offers may be lower for minority workers, but that wage differences for a given level of productivity should diminish with the worker's job tenure. If a wage subsidization policy is designed so that initial wage offers are equal for majority and minority workers and is maintained for a time period sufficient to demonstrate true productivity, then wage differences for a given level of productivity should disappear. We also provide an empirical test of the effectiveness of such a policy by using a sample of participants in a government job program that enforced equal wage schedules for White and Black workers. Our results show that measured discrimination declined among program participants, supporting the hypothesis that wage subsidies would be an effective anti-discrimination policy.     

Quality of Work and Aggregate Productivity

We inspect the relationship between quality of work and productivity. Using Spanish aggregate data for the period 2001–2006, we find that quality of work is an additional factor to explain productivity levels in sectors and regions. Consequently, quality of work is not only an objective per se, but it also may be a production factor able to increase the wealth of regions. In our work we use two alternatives definitions of quality of work, coming respectively from survey data and from a social indicators approach. Besides, we employ two different measurements of labour productivity, in order to test the robustness of our result. We estimate our model using a simultaneous equation model for our panel of data, and we find important differences in high and low human capital sectors. The former display a positive relationship between quality of work and productivity, while the latter show a negative relationship.     

Seasonal change of nest survival and related aspects in an aggregation ofLasioglossum duplex (Dalla torre), a eusocial halictine bee (Hymenoptera: Halictidae)

Summary Nest survival in an aggregation of a eusocial halictine bee,Lasioglossum duplex, was censused through an annual cycle. Out of 2,500 nests marked at the beginning of solitary phase in the spring, only 25.5% attained eusocial phase. But 60.5% of 636 nests attaining eusocial phase successfully produced sexual offspring. This shows that solitary phase is the most vulnerable period in the annual cycle. A very low productivity in eusocial phase in the census year was clarified from examination of 99 nests in the autumn. The number of prospective foundresses surviving to the next year was estimated upon the number of brood cells in examined nests and of old females surviving these nests. Deviation between this estimate and the number of nests made in the next spring was 8.8%, confirming a drop of population size to less than one third in the next year. Some nests solitarily made in the summer by dispersed females were examined. Productivity in such nests was extremely low, hence these nests should contribute virtually nothing to the next generation. Possible factors affecting the low productivity in eusocial phase were enumerated though none of these were supported by concrete evidence. Some considerations were given on the relation between obtained results and colony life cycle in eusocial insects, particularly in halictine bees. Bionomics of the eusocial halictine bee,Lasioglossum duplex. VI.     

Productivity of Older Workers: Perceptions of Employers and Employees

What determines the perceived productivity of the older worker and how does this perception compare to the perception of the productivity of the younger worker? In this study we present evidence based on data from Dutch employers and employees. Productivity perceptions are affected by one's age and one's position in the hierarchy. The young favor the young, the old favor the old, and employers value the productivity of workers less than employees do. However, there are also remarkable similarities across employers and employees. By distinguishing the various dimensions that underlie the productivity of younger and older workers, we tested whether soft qualities and abilities—e.g., reliability and commitment—are just as important as hard qualities—cognitive and physically based skills—in the eyes of both employers and employees. It appears that both employers and employees, young and old, view hard skills as far more important than soft skills.     

SMPD Scenarios of Spatial Distribution of Human Population in China

Three scenarios of spatial distribution of human population in China are developed in the years 2010 and 2020, respectively by means of the method of surface modeling of population distribution (SMPD). Each one of the SMPD scenarios is defined as a plausible alternative future under particular assumptions of elevation, water system, net primary productivity (NPP), urbanization, transport infrastructure development, and population growth. The SMPD scenarios show that if population could freely migrate within the whole China, the balanced ratios of population in the western region, the middle region and the eastern region to total population in the whole China would be 16%, 33% and 52%, respectively.     

Environmental Change and Out-Migration: Evidence from Nepal

Scholars and activists have hypothesized a connection between environmental change and out-migration. In this paper we test this hypothesis using data from Nepal. We operationalize environmental change in terms of declining land cover, rising times required to gather organic inputs, increasing population density, and perceived declines in agricultural productivity. In general, environmental change is more strongly related to short- than long-distance moves. Holding constant the effects of other social and economic variables, we find that local moves are predicted by perceived declines in productivity, declining land cover, and increasing time required to gather firewood. Long-distance moves are predicted by perceived declines in productivity, but the effect is weaker than in the model of short-distance mobility. We also show that effects of environmental change vary by gender and ethnicity, with women being more affected by changes in the time required to gather fodder and men by changes in the time to gather firewood, and high caste Hindus generally being less affect than others by environmental change.     

Environmental change and out-migration: evidence from Nepal

Scholars and activists have hypothesized a connection between environmental change and out-migration. In this paper, we test this hypothesis using data from Nepal. We operationalize environmental change in terms of declining land cover, rising times required to gather organic inputs, increasing population density, and perceived declines in agricultural productivity. In general, environmental change is more strongly related to short- than long-distance moves. Holding constant the effects of other social and economic variables, we find that local moves are predicted by perceived declines in productivity, declining land cover, and increasing time required to gather firewood. Long-distance moves are predicted by perceived declines in productivity, but the effect is weaker than in the model of short-distance mobility. We also show that effects of environmental change vary by gender and ethnicity, with women being more affected by changes in the time required to gather fodder and men by changes in the time to gather firewood, and high-caste Hindus generally being less affect than others by environmental change.     

Drivers of land use change and household determinants of sustainability in smallholder farming systems of Eastern Uganda

Smallholder farming systems in sub-Saharan Africa have undergone changes in land use, productivity and sustainability. Understanding of the drivers that have led to changes in land use in these systems and factors that influence the systems’ sustainability is useful to guide appropriate targeting of intervention strategies for improvement. We studied low input Teso farming systems in eastern Uganda from 1960 to 2001 in a place-based analysis combined with a comparative analysis of similar low input systems in southern Mali. This study showed that policy-institutional factors next to population growth have driven land use changes in the Teso systems, and that nutrient balances of farm households are useful indicators to identify their sustainability. During the period of analysis, the fraction of land under cultivation increased from 46 to 78%, and communal grazing lands nearly completely disappeared. Cropping diversified over time; cassava overtook cotton and millet in importance, and rice emerged as an alternative cash crop. Impacts of political instability, such as the collapse of cotton marketing and land management institutions, of communal labour arrangements and aggravation of cattle rustling were linked to the changes. Crop productivity in the farming systems is poor and nutrient balances differed between farm types. Balances of N, P and K were all positive for larger farms (LF) that had more cattle and derived a larger proportion of their income from off-farm activities, whereas on the medium farms (MF), small farms with cattle (SF1) and without cattle (SF2) balances were mostly negative. Sustainability of the farming system is driven by livestock, crop production, labour and access to off-farm income. Building private public partnerships around market-oriented crops can be an entry point for encouraging investment in use of external nutrient inputs to boost productivity in such African farming systems. However, intervention strategies should recognise the diversity and heterogeneity between farms to ensure efficient use of these external inputs.     

One-child families also have possibilities for getting rich]

The common people believe that families with more children have a larger labor force and more income, and that families with 1 child have a smaller labor force and thus less income. Recent findings from Zhangqiu County of Shandong Province show that families with only 1 child have 67.8% more income than families with 2 children. The reason is that families with 1 child have fewer dependents and the financial burden for them is less. When the husband goes to work, the wife, who is taking care of only one child, will have more time and energy for part-time work to be done at home to increase income. In addition, if a family has fewer children, expenditures are also lower, and this is a beneficial condition for becoming wealthy. Furthermore, the nation offers a great many financial privileges and special treatment to families with 1 child, such as tuition exemptions, medical and health care allowances, more grain quotas, and better marketing arrangements for products from households with 1 child. All these have improved the livelihood of families with 1 child. An adequate ideological education to families with 1 child is needed in order to increase their motivation and productivity. Good nurseries and kindergartens are also needed so that parents may concentrate on their daily work and improve productivity. Birth control measures for childbearing women should be improved and efforts should be made to emphasize the importance of birth control to the nation.     

The role of population in social development]

This essay deals with population growth, varieties in population density, and their impacts on social development from the viewpoint of Socialism. The author's main argument can be summarized as follows: 1) population growth is a kind of social production, and it is more important than the geographical environment in relation to social development. Regarding population growth, varieties in population density, and the geographical environment as conditions of equal importance in social life is debatable. 2) the changes in population development should not be limited to the changes in number alone. As science and technology are developed, the impact of changes of population quality on social development is becoming increasingly important. 3) population growth is not the major force which determines the social outlook and social system, and it directly influences social productivity. One should not think that a large population and rapid growth rate will speed up social productivity, or that a small population and a slow growth rate will slow down the development of social productivity. The author quotes Joseph Stalin to support his argument.