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Mobility Rates (mobility + rate)
Selected AbstractsAdaptive directional-aware location update strategyINTERNATIONAL JOURNAL OF COMMUNICATION SYSTEMS, Issue 2 2004Tracy Tung Abstract In this paper, a new tracking strategy, the directivity-aware location updating scheme was developed to better utilize the distinct characteristics of individual users on travelling directions. In this new adaptive scheme, an optimal distance-based update threshold is selected according to the call-to-mobility ratio and a transitional directivity index, introduced to give indications of the mobile's travelling patterns. It is found that as far as mobility characteristics are concerned, the actual transitional direction of roaming mobiles plays a significant role in selecting the optimal threshold in addition to the usual perception about mobility rate. Its advantage becomes even more visible when an optimal threshold is not theoretically obtainable due to certain restrictions imposed by the network during times of high system loadings. Simulation results show that the additional information made available about roaming mobile's transitional directivity is critical to ensure that the best available sub-optimal threshold is realizable. Other advances in this paper include the simplification of existing Markovian movement model. With the improved model presentation, the number of states necessary to simulate such memoryless movements is reduced. Consequently, the computational complexity involved is also lessened. Copyright © 2004 John Wiley & Sons, Ltd. [source] Household diversity and migration in mid-life: understanding residential mobility among 45,64 year olds in Melbourne, AustraliaPOPULATION, SPACE AND PLACE (PREVIOUSLY:-INT JOURNAL OF POPULATION GEOGRAPHY), Issue 4 2010Maryann Wulff Abstract This paper focuses on the residential mobility of middle-aged persons, not yet retired, an understudied cohort in mobility research. From the 1950s to the 1980s, mobility studies pointed to mid-life as a settled stage in terms of family, work and housing. Recent demographic and social changes, however, have led to these years being typified by a wide gamut of living arrangements that have complicated decisions about, and patterns of, residential mobility. Using the life-course perspective, this paper suggests that the transition to ,empty nester' status will heighten mobility among this group of middle-aged persons relative to their counterparts in other living arrangements. The analysis uses a customised migration matrix from the Australian 2006 Census and identifies segments of 45,64 year olds most likely to have changed address since the previous census in 2001. CHAID statistical method partitioned the 45,64 year old population in Melbourne, Australia, into eight statistically significant segments based on life-course factors and mobility levels. Younger (45,54 years) mid-life empty-nesters changed residence at 1.4 times the mobility rate of all mid-life persons. For couples in this age group, empty nest status conferred a 13 percentage point ,mobility premium' compared with couples that still had children at home. The results contribute to a better understanding of housing consumption among mid-life households and broader debates on access to affordable housing and processes of urban growth. Copyright © 2009 John Wiley & Sons, Ltd. [source] Caught in a Trap?ECONOMICA, Issue 268 2000Wage Mobility in Great Britain: 197 In this paper I study wage mobility in Great Britain using the New Earnings Surveys of 1975,94 and the British Household Panel Surveys of 1991,94. Measuring mobility in terms of decile transition matrices, I find a considerable degree of immobility within the wage distribution from one year to the next. Mobility is higher when measured over longer time periods. Those in lower deciles in the wage distribution are much more likely to exit into unemployment and non-employment. Measuring mobility by studying changes in individuals' actual percentile rankings in the wage distribution, I find evidence that short-run mobility rates have fallen since the late 1970s. This has potentially important welfare implications, given the rise in cross-section earnings inequality observed over the last two decades. [source] New Evidence of the Effect of Transaction Costs on Residential Mobility,JOURNAL OF REGIONAL SCIENCE, Issue 4 2005Jos Van Ommeren Transaction costs are thought to cause suboptimal consumption of housing but may also negatively affect labor market outcomes. In the current paper, we demonstrate empirically for the Netherlands that transaction costs have a strong negative effect on the owners' probability of moving. Under a range of different specifications, it appears that a 1 percent-point increase in the value of transaction costs,as a percentage of the value of the residence,decreases residential mobility rates by (at least) 8 percent. The estimates imply that ownership to ownership mobility rates would be substantially higher in the absence of the current 6 percent ad valorem buyer transaction tax. Our estimates are consistent with the observation that in the Netherlands ad valorem transaction costs mainly consist of buyer transaction costs. [source] Has social mobility in Britain decreased?THE BRITISH JOURNAL OF SOCIOLOGY, Issue 2 2010Reconciling divergent findings on income, class mobility Abstract Social mobility has become a topic of central political concern. In political and also media circles it is widely believed that in Britain today mobility is in decline. However, this belief appears to be based on a single piece of research by economists that is in fact concerned with intergenerational income mobility: specifically, with the relation between family income and children's later earnings. Research by sociologists using the same data sources , the British birth cohort studies of 1958 and 1970 , but focusing on intergenerational class mobility does not reveal a decline either in total mobility rates or in underlying relative rates. The paper investigates these divergent findings. We show that they do not result from the use of different subsets of the data or of different analytical techniques. Instead, given the more stable and generally less fluid class mobility regime, it is the high level of income mobility of the 1958 cohort, rather than the lower level of the 1970 cohort, that is chiefly in need of explanation. Further analyses , including ones of the relative influence of parental class and of family income on children's educational attainment , suggest that the economists' finding of declining mobility between the two cohorts may stem, in part at least, from the fact that the family income variable for the 1958 cohort provides a less adequate measure of ,permanent income' than does that for the 1970 cohort. But, in any event, it would appear that the class mobility regime more fully captures the continuity in economic advantage and disadvantage that persists across generations. [source] Intergenerational class mobility in contemporary Britain: political concerns and empirical findings1THE BRITISH JOURNAL OF SOCIOLOGY, Issue 4 2007John H. Goldthorpe Abstract In Britain in recent years social mobility has become a topic of central political concern, primarily as a result of the effort made by New Labour to make equality of opportunity rather than equality of condition a focus of policy. Questions of the level, pattern and trend of mobility thus bear directly on the relevance of New Labour's policy analysis, and in turn are likely be crucial to the evaluation of its performance in government. However, politically motivated discussion of social mobility often reveals an inadequate grasp of both empirical and analytical issues. We provide new evidence relevant to the assessment of social mobility , in particular, intergenerational class mobility , in contemporary Britain through cross-cohort analyses based on the NCDS and BCS datasets which we can relate to earlier cross-sectional analyses based on the GHS. We find that, contrary to what seems now widely supposed, there is no evidence that absolute mobility rates are falling; but, for men, the balance of upward and downward movement is becoming less favourable. This is overwhelmingly the result of class structural change. Relative mobility rates, for both men and women, remain essentially constant, although there are possible indications of a declining propensity for long-range mobility. We conclude that under present day structural conditions there can be no return to the generally rising rates of upward mobility that characterized the middle decades of the twentieth century , unless this is achieved through changing relative rates in the direction of greater equality or, that is, of greater fluidity. But this would then produce rising rates of downward mobility to exactly the same extent , an outcome apparently unappreciated by, and unlikely to be congenial to, politicians preoccupied with winning the electoral ,middle ground'. [source] Industrialization, class structure, and social mobility in postwar Japan 1THE BRITISH JOURNAL OF SOCIOLOGY, Issue 4 2001Hiroshi Ishida ABSTRACT This study examines intergenerational class mobility in Japan using cross-national comparisons with Western nations and cross-temporal comparisons of five national surveys conducted in postwar Japan. Cross-national comparisons highlight the similarity in relative mobility pattern between Japan and Western nations and at the same time the Japanese distinctiveness in absolute mobility rates especially regarding the demographic character of the Japanese manual working class. The results of cross-temporal comparisons of mobility pattern report some systematic trends in total mobility, inflow and outflow rates, reflecting the Japanese experience of late but rapid industrialization. The pattern of association between class origin and class destination, however, was stable in postwar Japan. It is therefore the combination of distinctive absolute mobility rates and similar relative mobility rates that characterizes the Japanese mobility pattern in comparison with the Western experience. Furthermore, Japan's distinctive pattern of postwar social mobility is characterized by a combination of rapidly changing absolute mobility rates and comparatively stable relative mobility rates. [source] | ||||||||||