332 research outputs found
Labour Market Impact of Large Scale Internal Migration on Chinese Urban 'Native' Workers
Hundreds of millions of rural migrants have moved into Chinese cities since the early 1990s contributing greatly to economic growth, yet, they are often blamed for reducing urban 'native' workers’ employment opportunities, suppressing their wages and increasing pressure on infrastructure and other public facilities. This paper examines the causal relationship between rural-urban migration and urban native workers' labour market outcomes in Chinese cities. After controlling for the endogeneity problem our results show that rural migrants in urban China have modest positive or zero effects on the average employment and insignificant impact on earnings of urban workers. When examine the impact on unskilled labours we once again find it to be positive and insignificant. We conjecture that the reason for the lack of adverse effects is due partially to the labour market segregation between the migrants and urban natives, and partially due to the complementarities between the two groups of workers. Further investigation reveals that the increase in migrant inflow is related to the demand expansion and that if the economic growth continues, elimination of labour market segregation may not necessarily lead to an adverse impact of migration on urban native labour market outcomes.migration, native labour market outcomes, China
Study on Customer’s Attitude towards a Trustworthy Website
These more and more people choose to spend their free time on the internet rather than watching television. But there are still some people who are not willing to shopping online. This kind of online shopping reluctance may be due to there are some limitations associated with shopping online: lack of security, possibility of fraud, not being able to touch the desired product. And this paper tell the owners of websites must understand their customers well and gain a deep knowledge of website trustworthiness about online purchasing from the view point of the customers, what are they and how they affect the consumer’s decision of purchasing
The Dynamic Change in Wage Gap between Urban Residents and Rural Migrants in Chinese Cities
Although a significant wage gap has been found in many previous studies between urban workers and rural migrants in Chinese cities, it is still not clear how such a wage gap may evolve over time. This paper uses both a dynamic wage decomposition method and economic assimilation model with pooled cross-sectional data from the China Household Income Project Survey (CHIPS) of 1999 and 2002 to investigate the change in the wage gap between urban workers and rural migrants over time and its determinants in Chinese cities. The estimation results show that (1) there is a widening on-average wage gap between urban workers and rural migrants across the two surveyed years in Chinese cities, mainly caused by the decline in the return to education for rural migrants; (2) rural migrants can catch up with the wage level of their urban counterparts as the time they reside in the host cities increases, but because of the decline in the speed of catching-up over time, rural migrants cannot obtain wages comparable totheir urban counterparts in their life time, and more importantly well-educated rural migrants do not seem to have a significant advantage in this wage assimilation process than the lowlypoorly-educated ones. Both findings suggest that there might be discrimination against well-educated rural migrants which prevents them from obtaining a fair wage in the Chinese urban labour market.Wage differential, Migration
Labour market impact of large scale internal migration on Chinese urban 'native' workers
Hundreds of millions of rural migrants have moved into Chinese cities since the early 1990s contributing greatly to economic growth, yet, they are often blamed for reducing urban 'native' workers' employment opportunities, suppressing their wages and increasing pressure on infrastructure and other public facilities. This paper examines the causal relationship between rural-urban migration and urban native workers' labour market outcomes in Chinese cities. After controlling for the endogeneity problem our results show that rural migrants in urban China have modest positive or zero effects on the average employment and insignificant impact on earnings of urban workers. When examine the impact on unskilled labours we once again find it to be positive and insignificant. We conjecture that the reason for the lack of adverse effects is due partially to the labour market segregation between the migrants and urban natives, and partially due to the complementarities between the two groups of workers. Further investigation reveals that the increase in migrant inflow is related to the demand expansion and that if the economic growth continues, elimination of labour market segregation may not necessarily lead to an adverse impact of migration on urban native labour market outcomes
How much do we know about the impact of the economic downturn on the employment of migrants?
The employment shock of late 2008 in the People's Republic of China (PRC) may have been a product of three different events: (i) the contractionary macroeconomic policies introduced by the government and the central bank in 2007 to slow growth, (ii) the introduction of the new Labor Contract Law at the start of 2008, and (iii) the reduction in export orders due to the global financial crisis from the second half of 2008. These three events occurred sequentially, and their impact on employment has been borne most heavily by rural-urban migrants. Using unique data that track 5,000 migrant households in 15 cities from 2008 to 2009, this paper documents the size of the employment impact of the economic downturn, investigates the geographic location and industry distribution of the effect, and examines the types of migrant workers who lost their jobs in 2008 because of the economic downturn. We find that job loss is not confined to export manufacturing industries, nor is it restricted to coastal cities where export industries are located. We interpret this widespread job loss to indicate that the employment shock that took place in the PRC at the end of 2008 and early 2009 was a response to both the global financial crisis and domestic economic policies
Turbo Coded and Cooperative Network Coded Non-Coherent Soft-Decision Star-QAM Dispensing with Channel Estimation
Star Quadrature Amplitude Modulation (Star-QAM) is a non-coherent detection aided scheme ideal for low-complexity wireless transceivers. In this contribution, we first derive soft-decision aided StQAM symbol-to-bit demapping combined with iterative detection aided Turbo Coding (TC). Then we combine this physical layer design with network coding (NC) and quantify the attainable coding gain. It is shown that the proposed 16-level Star-QAM (16-StQAM) based TC scheme is capable of achieving a coding gain of about 1.5~dB over the TC aided 16-level Differential Phase-Shift Keying (16DPSK) benchmark scheme at a BER of 10-5. The 16-StQAM based TC assisted scheme is capable of offering another 1.2~dB coding gain, when it is employed in a 'butterfly' topology network arrangement. When the source and relay nodes are allowed to transmit at different power levels, the two-hop 16-StQAM based TC aided NC scheme outperforms the single-hop 16-StQAM based TC scheme by approximately 2.2~dB
Gender Differences in Willingness to Compete: The Role of Culture and Institutions
In the laboratory experiment reported in this paper we explore how evolving institutions and social norms, which we label 'culture', change individuals' preferences and behaviour in mainland China. From 1949 China experienced dramatic changes in its socio-economic institutions. These began with communist central planning and the establishment of new social norms, including the promotion of gender equality in place of the Confucian view of female 'inferiority'. Market-oriented reforms, begun in 1978, helped China achieve unprecedented economic growth and at the same time Marxist ideology was gradually replaced by the acceptance of individualistic free-market ideology. During this period, many old traditions crept back and as a consequence social norms gradually changed again. In our experiment we investigate gender differences in competitive choices across different birth cohorts of individuals who, during their crucial developmental-age, were exposed to one of the two regimes outlined above. In particular we investigate gender differences in competitive choices for different birth cohorts in Beijing using their counterparts in Taipei (subject to the same original Confucian traditions) to control for the general time trend. Our findings confirm: (i) that females in Beijing are significantly more likely to compete than females from Taipei; (ii) that Beijing females from the 1958 birth cohort are more competitive than their male counterparts as well as more competitive than later Beijing birth cohorts; and (iii) that for Taipei there are no statistically significant differences across cohort or gender in willingness to compete. In summary, our findings confirm that exposure to different institutions and social norms during the crucial developmental age changes individuals' behaviour. Our findings also provide further evidence that gender differences in economic preferences are not innately determined
STUDY ON MECHANICAL BEHAVIOR OF CABLE - STAYED BRIDGE SUPPORT SYSTEM IN MULTI - FULCRUM UNBALANCED ROTATION
With the maturity and wide application of the bridge rotation construction technology, the single-fulcrum spherical hinge balance rotation can not meet the need of crossing over the high-speed railway catenary and other obstacles, so the unbalanced rotation construction is often needed. In order to ensure the stability and safety of the unbalanced rotation process, a multi-pivot rotation method is proposed. In this paper, the railway cable-stayed bridge over Harbin West Avenue is taken as the research object, and the multi-fulcrum rotating construction method over the metal contact network is adopted. The Abaqus finite element model is established, the influence of different rotation angular velocity, friction coefficient of slideway and position of support foot on the force of support system in the course of rotation is studied. The results show that, compared with the traditional single-pivot rotation, the force on the multi-pivot rotation support foot becomes the main force component, and the force on the spherical hinge decreases. The rotation angular velocity is positively correlated with Mises stress of the support foot and the spherical hinge. The friction coefficient of the slideway has a great influence on the force of the support foot. When the friction coefficient of the slideway changes in order of 0.02,0.04,0.06,0.08 and 0.1, the friction stress of the outer edge of the support foot increases linearly. Considering the force of spherical hinge and support foot, the best position of supporting foot is 7.3 m from the center of spherical hinge. The research in this paper can be used for reference in the future multi-pivot unbalanced rotation construction
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