Understanding Changes in Mâori Incomes and Income Inequality 1997-2003

This paper reports findings from a study of changes in Mâori income levels and income dispersion between 1997 and 2003. Data from Statistics New Zealand’s Income Survey are used to describe and evaluate the main changes in the Mâori income distribution in this period, which was marked by substantial increases in employment rates and improvements in the skill levels of working-aged Mâori. A parallel analysis of the main changes in the European/Pâkehâ income distribution is provided for comparative purposes. The results show significant reductions in the proportion of Mâori with no weekly income in the reference week, or incomes of $150–200 a week, and significant increases in the proportion with incomes above the peak income level of approximately$550 per week. Income inequality within the total working-aged Mâori population declined, while income inequality among employed Mâori was stable. An analysis of some of the key factors contributing to change in the income distribution suggests that the transition of many Mâori into employment during this period was the single most important driver of change.Individual income distribution; Inequality; Mâori; Kernel density estimation

Understanding Changes in Maori Incomes and Income Equality 1997-2003

This paper reports findings from a study of changes in Maori income levels and income dispersion between 1997 and 2003. Data from Statistics New Zealand's Income Survey are used to describe and evaluate the main changes in the Maori income distribution in this period, which was marked by substantial increases in employment rates and improvements in the skill levels of working-aged Maori. A parallel analysis of the main changes in the European/Pakeha income distribution is provided for comparative purposes. The results show significant reductions in the proportion of Maori with no weekly income in the reference week, or incomes of $150-200 a week, and significant increases in the proportion with incomes above the peak income level of approximately$550 per week. Income inequality within the total working-aged Maori population declined, while income inequality among employed Maori was stable. An analysis of some of the key factors contributing to change in the income distribution suggests that the transition of many Maori into employment during this period was the single most important driver of change.Individual income distribution; Inequality; Maori; Kernel density estimation

Changes in the Maori Income Distribution: Evidence from the Population Census

This paper uses census data to identify the main changes in the individual-level income distribution of working-aged Maori between 1991 and 2001, and to analyse the effects of changes in the distribution of socio-demographic attributes and labour market activity patterns on the Maori income distribution. There was substantial real income growth at most points in the income distribution, and particularly at points above the 30th percentile, but a decline in real incomes at the very lowest percentiles. The socio-demographic and labour market changes considered help to explain much of the income growth that was recorded at lower-middle to upper levels of income. However, they fail to account for the increase in the proportion of people with negative, nil, or very low incomes.Individual income distribution, Inequality, Maori

Changes in the Mâori Income Distribution: Evidence from the Population Census

This paper uses census data to identify the main changes in the individual-level income distribution of working-aged Mâori between 1991 and 2001, and to analyse the effects of changes in the distribution of socio-demographic attributes and labour market activity patterns on the Mâori income distribution. There was substantial real income growth at most points in the income distribution, and particularly at points above the 30th percentile, but a decline in real incomes at the very lowest percentiles. The socio-demographic and labour market changes considered help to explain much of the income growth that was recorded at lower- middle to upper levels of income. However, they fail to account for the increase in the proportion of people with negative, nil, or very low incomes.Individual income distribution, Inequality, Mâori

Advanced Techniques for Multiparton Loop Calculations: A Minireview

We present an overview of techniques developed in recent years for the efficient calculation of one-loop multiparton amplitudes, in particular those relying on unitarity and collinear factorization.Comment: 5 pages, LaTeX/aipproc, presented at DIS '97, Chicago, IL, April 14-18, 199

All-Orders Singular Emission in Gauge Theories

I present a class of functions unifying all singular limits for the emission of soft or collinear gluons in gauge-theory amplitudes at any order in perturbation theory. Each function is a generalization of the antenna functions of ref. [1]. The helicity-summed interferences these functions are thereby also generalizations to higher orders of the Catani--Seymour dipole factorization function.Comment: 5 pages, 1 figur

Maori economic development - Glimpses from statistical sources

This draft book chapter provide an overview of Maori economic development during the past 150 years, drawing on readily available statistical and historical sources. The path of Maori economic development that we have traced through statistical evidence is one of ongoing change and adaptation, as well as one of substantial increase in material standards of living, albeit with periods of significant setback.Maori economic development

Precision frequency measurements with interferometric weak values

We demonstrate an experiment which utilizes a Sagnac interferometer to measure a change in optical frequency of 129 kHz per root Hz with only 2 mW of continuous wave, single mode input power. We describe the measurement of a weak value and show how even higher frequency sensitivities may be obtained over a bandwidth of several nanometers. This technique has many possible applications, such as precision relative frequency measurements and laser locking without the use of atomic lines.Comment: 4 pages, 3 figures, published in PR

Ultrasensitive Beam Deflection Measurement via Interferometric Weak Value Amplification

We report on the use of an interferometric weak value technique to amplify very small transverse deflections of an optical beam. By entangling the beam's transverse degrees of freedom with the which-path states of a Sagnac interferometer, it is possible to realize an optical amplifier for polarization independent deflections. The theory for the interferometric weak value amplification method is presented along with the experimental results, which are in good agreement. Of particular interest, we measured the angular deflection of a mirror down to 560 femtoradians and the linear travel of a piezo actuator down to 20 femtometers

Optimizing the Signal to Noise Ratio of a Beam Deflection Measurement with Interferometric Weak Values

The amplification obtained using weak values is quantified through a detailed investigation of the signal to noise ratio for an optical beam deflection measurement. We show that for a given deflection, input power and beam radius, the use of interferometric weak values allows one to obtain the optimum signal to noise ratio using a coherent beam. This method has the advantage of reduced technical noise and allows for the use of detectors with a low saturation intensity. We report on an experiment which improves the signal to noise ratio for a beam deflection measurement by a factor of 54 when compared to a measurement using the same beam size and a quantum limited detector