The Impact of Immigration on the Geographic Mobility of New Zealanders

This paper uses data from the New Zealand Census to examine how the supply of recent migrants in particular skill groups affects the geographic mobility of the New Zealand-born and earlier migrants. We identify the impact of recent migration on mobility using the "area-analysis" approach, which exploits the fact that immigration is spatially concentrated, and thus a change in the local supply of migrants in a particular skill group should have an impact on the mobility of similarly skilled nonmigrants in that local labour market. Overall, our results provide little support for the hypothesis that migrant inflows displace either the NZ-born or earlier migrants with similar skills in the areas that new migrants are settling. If anything, they suggest that there are positive spillovers between recent migrants and other individuals that encourage individuals to move to or remain in the areas in which similarly skilled migrants are settling. Thus, it appears unlikely that internal mobility moderates any potential impacts of immigration on labour or housing markets in New Zealand.Immigration, Mobility, New Zealand, Labour Market Areas

Cities and Skills

This paper examines the productivity (and wage) gains from locating in dense, urban environments. We distinguish between three potential explanations of why firms are willing to pay urban workers more: (1) the urban wage premium is spurious and is the result of omitted ability measures, (2) the urban wage premium works because cities enhance productivity and (3) the urban wage premium is the result of faster skill accumulation in cities. Using a combination of standard regressions, individual fixed effects estimation (using migrants) and instrumental variables methods, we find that the urban wage premium does not represent omitted ability bias and it is only in part a level effect to productivity. The bulk of the urban wage premium accrues over time as a result of greater skill accumulation in cities.

Job Mobility and Wage Dynamics

Matched employer-employee data research has found that workersf wages are affected by the characteristics of the firms they work in, and that higher skilled workers tend to be employed by higher paying firms. This paper examines the contribution of workersf job mobility to their wage dynamics. We focus on the possible trade-off between moving to a better paying firm and losing a firm-tenure specific component of earnings, and examine what types of workers benefit from changing firms, rather than staying with their existing employer. Our analysis provides four main findings. First, although the raw earnings gains to jobmovers and stayers are about the same, we find that, after controlling for observable differences, job-movers have about 1.3 percent lower annual earnings growth than nonmovers. Second, we estimate that job-movers gain 0.3 percent per year on average from moving to higher paying firms, but lose 1.6 percent in transitory earnings associated with changing jobs. The gains from moving to better firms are larger for both younger and new entrant workers, while the transitory earnings losses are smaller. We interpret these findings as being due to an earnings growth trade-off for workers between moving to a higher paying firm and losing their tenure-related earnings at their existing firm. Third, we estimate that, on average, workers gain (almost) all of the change in firm earnings premiums when they change jobs. However, such gains are not equally shared by all workers. In particular, our estimates suggest that it is the higher ability workers (as measured by the estimated worker earnings premiums) whose earnings gain (or lose) the most from moving to a firm with higher (or lower) earnings premiums. Finally, we find that workersf earnings also benefit on average from a change in the average earnings of their co-workers. Controlling for other factors, we estimate that a 1 standard deviation change in the estimated average peer earnings is associated with about 0.25 percent change in a workerfs earnings on average.Earnings, Linked Employer-Employee Data, worker mobility, job turnover

Immigration and Innovation

We combine firm-level innovation data with area-level Census data to examine the relationship between local workforce characteristics, especially the presence of immigrants and local skills, and the likelihood of innovation by firms. We examine a range of innovation outcomes, and test the relationship for selected subgroups of firms. We find a positive relationship between local workforce characteristics and average innovation outcomes in labour market areas, but this is accounted for by variation in firm characteristics such as firm size, industry, and research and development expenditure. Controlling for these influences, we find no systematic evidence of an independent link between local workforce characteristics and innovation.Innovation; Immigration; Local labour market

Modelling Regional Labour Market Adjustment in New Zealand

This paper adopts a vector autoregressive (VAR) approach to analyse the labour market adjustment mechanisms for 12 New Zealand regions over the period 1985 to 2001. It examines the effects of a region-specific shock to employment on itself, the unemployment rate, the participation rate, and the wage rate. The role of migration as a channel of regional labour market adjustment is also inferred. We find that adjustment occurs predominantly through inter-regional migration although the unemployment and participation rates also play a role. Wages, on the other hand, account for very little adjustment. The importance of inter-regional migration in New Zealand matches the results found in Sweden, but stands in contrast to the picture in many European countries. Migration appears to be a more dominant adjustment channel compared to the US and Australian cases. However, this has to be placed into context – New Zealand regions are much smaller in terms of population size.Regional labour market adjustment; Internal migration

Deprivation in New Zealand: Regional Patterns and Changes

This paper presents an analysis of the distribution of socio- economic deprivation throughout New Zealand. The analysis focuses on the three census years 1986, 1991, and 1996. A summary deprivation measure is constructed which approximates New ZealandDep96 using standard regression techniques. The paper extends a static analysis of deprivation by examining changes to the deprivation profile across time on a regional basis. Differences in the incidence of deprivation for different ethnic groups are emphasised. Maori and Pacific people are more likely to live in deprived meshblocks than their European counterparts. We also touch on the role isolation plays in determining the distribution of deprivation.deprivation; inequality; distribution; meshblocks; regions

The diagnostic and prognostic significance of monitoring blood levels of immature neutrophils in patients with systemic inflammation

Introduction: In this cohort study, we investigated whether monitoring blood levels of immature neutrophils (myelocytes, metamyelocytes and band cells) differentiated patients with sepsis from those with the non-infectious (N-I) systemic inflammatory response syndrome (SIRS). We also ascertained if the appearance of circulating immature neutrophils was related to adverse outcome.Methods: Blood samples were routinely taken from 136 critically ill patients within 48 hours of ICU entry and from 20 healthy control subjects. Clinical and laboratory staff were blinded to each other's results, and patients were retrospectively characterised into those with SIRS (n = 122) and those without SIRS (n = 14). The patients with SIRS were further subdivided into categories of definite sepsis (n = 51), possible sepsis (n = 32) and N-I SIRS (n = 39). Two established criteria were used for monitoring immature white blood cells (WBCs): one where band cells &gt;10% WBCs and the other where &gt;10% of all forms of immature neutrophils were included but with a normal WBC count. Immature neutrophils in blood smears were identified according to nuclear morphology and cytoplasmic staining.Results: With the first criterion, band cells were present in most patients with SIRS (mean = 66%) when compared with no SIRS (mean = 29%; P &lt;0.01) and with healthy subjects (0%). The prevalence of band cells was higher in definite sepsis (mean = 82%) than in patients with possible sepsis (mean = 63%; P &lt;0.05) or with N-I SIRS (mean = 39%; P &lt;0.001), and they had a sensitivity of 84% and a specificity of 71% for the detection of definite sepsis. With the second criterion (that is, patients with normal WBC counts), we noted that immature neutrophils did not differentiate any of the patient groups from one another. Patients who died within 1 week of blood sample provision had higher levels of myelocytes and metamyelocytes (median = 9%; P &lt;0.05) than patients who died at 2 to 4 weeks (median = 0.5%).Conclusions: Raised blood levels of band cells have diagnostic significance for sepsis, provided that measurements are not confined to patients with normal WBC counts, whereas an increased prevalence of myelocytes and metamyelocytes may have prognostic application.</p

What Workd For Whom?: The Effectiveness of Different Employment Programmes

This paper estimates the impact of different categories of employment policy interventions on job-seekers' subsequent experience. We generate a range of estimates to help us distinguish programme effects from selection effects. We also examine the robustness of our findings for a range of sub-populations. There is limited variation in programme effects for people with different observed characteristics. Some evidence suggests that programme effectiveness may be countercyclical

Geographic Concentration of New Zealand Employment

This paper examines the degree of geographic concentration of employment in New Zealand, using summary measures proposed by Ellison and Glaeser (1997) and Maurel and Sedillot ( 1999). We use Statistics New Zealand Business Demography data for the period 1987-2003, and find that concentration has risen during that period. Around half of employment is in industries that display no significant concentration. International comparisons of the degree of concentration are difficult. but it appears that New Zealand's levels are similar to those of the United Kingdom, and lower than those of the US and France. Where concentration does occur, it operates most strongly over distances of less than 50km

Internal Migration and Regional Adjustment: Some Preliminary Issues

In this paper we examine the link between local labour market adjustment and internal migration. We use census data to provide a range of labour market indicators, and measures of movements of people between locations. We then consider the relationship between internal migration and regional labour market adjustment, examining the importance of accounting for persistent regional differences, international migration, and how similar locations are. We provide some preliminary estimates of labour market - migration links, building on the foundation of a simple gravity-model relationship