• Income Mobility in New Zealand 2007–2020: Combining Household Survey and Census Data 

  Creedy, John; Quy, Ta (Te Herenga Waka—Victoria University of Wellington, 2022)

  This paper describes income mobility patterns in New Zealand over the short to medium term. It uses a special dataset which tracks Household Labour Force Surveys over the period from 2007 to 2020, using 2013 census data. ...
• Exploring A New Class of Inequality Measures and Associated Value Judgements: Gini and Fibonacci-Type Sequences 

  Creedy, John; Subramanian, S. (Te Herenga Waka—Victoria University of Wellington, 2022)

  This paper explores a single-parameter generalization of the Gini inequality measure. Taking the starting point to be the Borda-type social welfare function, which is known to generate the standard Gini measure, in which ...
• Measuring Positional Changes within the New Zealand Income Distribution: Evidence from Administrative Data 

  Alinaghi, Nazila; Creedy, John; Gemmell, Norman (Te Herenga Waka—Victoria University of Wellington, 2022)

  This paper use administrative, longitudinal data on the New Zealand taxpayer population to examine the nature and extent of positional changes within the income distribution by individuals. It uses recently developed ...
• Differential Income Growth of Individuals in New Zealand: Evidence from Administrative Data 

  Alinaghi, Nazila; Creedy, John; Gemmell, Norman (Te Herenga Waka—Victoria University of Wellington, 2022)

  This paper uses administrative, longitudinal data on the New Zealand taxpayer population to examine the nature and extent of income mobility by individuals. It uses recently developed illustrative devices for mobility ...
• Age-Income Profiles in New Zealand: New Estimates Based on Administrative Data 

  Alinaghi, Nazila; Creedy, John; Gemmell, Norman (Te Herenga Waka—Victoria University of Wellington, 2022)

  This paper uses a new longitudinal dataset, containing information about the incomes of New Zealand individuals, to examine the form of cohort age-income profiles. A model of the variation in mean log-earnings with age, ...
• Summary Measures of Equalising Income Mobility Based on ‘Three Is of Mobility’ Curves 

  Creedy, John; Gemmell, Norman (Te Herenga Waka—Victoria University of Wellington, 2022)

  This paper extends the ‘Three Is of Mobility (TIM) Curve’ framework, developed by Creedy and Gemmell (2019) to produce summary measures of equalising mobility between two periods, based on areas within the diagram. Two ...
• Mortality Comparisons 'At a Glance': A Mortality Concentration Curve and Decomposition Analysis for India 

  Creedy, John; Subramanian, S. (Te Herenga Waka—Victoria University of Wellington, 2022)

  This paper uses the concept of the M-Curve, which plots the cumulative proportion of deaths against the corresponding cumulative proportion of the population (arranged in ascending order of age), and associated measures, ...
• Income Inequality and the Accounting Period in New Zealand: Evidence from Administrative Data 

  Alinaghi, Nazila; Creedy, John; Gemmell, Norman (Te Herenga Waka—Victoria University of Wellington, 2022)

  This paper examines the effect on taxable income inequality among New Zealand individuals of extending the accounting period beyond a single year. Typically, inequality comparisons are based on a single year accounting ...
• Inter-Decile Income Movements of Individuals in New Zealand: Evidence from Administrative Data 

  Alinaghi, Nazila; Creedy, John; Gemmell, Norman (Te Herenga Waka—Victoria University of Wellington, 2022)

  This paper provides an empirical description of the income mobility of individual incomes in New Zealand over the period 2002 to 2017, using information from transition matrices. These capture movements of individual ...
• Mortality Comparisons and Age: a New Mortality Curve 

  Creedy, John; Subramanian, S. (Te Herenga Waka—Victoria University of Wellington, 2022)

  This paper introduces a new mortality curve to illustrate and measure mortality and its relation to age. The curve draws on the ‘Lorenz-Gini’ framework of income-inequality measurement. The paper advances the cause of a ...
• The Performance Based Research Fund in NZ: Taking Stock and Looking Forward 

  Buckle, Robert A; Creedy, John (Te Herenga Waka—Victoria University of Wellington, 2022)

  This paper draws on earlier research by the authors to review changes in research quality in New Zealand universities since the introduction of the Performance Based Research Fund (PBRF) in 2003. The changes are related ...
• Chair in Public Finance Ten Year Review: 2011-2021 

  Gemmell, Norman (Te Herenga Waka—Victoria University of Wellington, 2022)

  This working paper provides a review of the activities and achievements of the Chair in Public Finance over the 10 years from its establishment in 2011 until 2021. The review covers Research, Publications, Research Supervision ...
• A Longitudinal Database for the Analysis of Family Incomes in New Zealand 

  Alinaghi, Nazila; Creedy, John; Gemmell, Norman (Te Herenga Waka—Victoria University of Wellington, 2020)

  This paper describes the construction of a unique longitudinal family-level dataset that allows the dynamics of family incomes in New Zealand to be examined over the period, 2000 to 2017. The data are obtained from the New ...
• An Evaluation of Metrics Used by the Performance-Based Research Fund Process in New Zealand 

  Buckle, Robert A; Creedy, John (Te Herenga Waka—Victoria University of Wellington, 2017)

  The New Zealand Performance-based Research Fund (PBRF) applies a unique set of metrics to assess researchers and rank disciplines and universities. The process involves giving a ‘raw score’ to individual researchers and ...
• The Redistributive Effects of a Minimum Wage Increase in New Zealand. A Microsimulation Analysis 

  Alinaghi, Nazila; Creedy, John; Gemmell, Norman (Te Herenga Waka—Victoria University of Wellington, 2019)

  This paper examines the potential effects on inequality and poverty of a minimum wage increase, based on a microsimulation model which allows for labour supply responses. It then compares these outcomes with an alternative, ...
• Income Inequality in New Zealand: Why Conventional Estimates are Misleading 

  Creedy, John; Gemmell, Norman (Te Herenga Waka—Victoria University of Wellington, 2018)

  Considerable attention is currently being paid to establishing the extent of inequality in New Zealand and whether it has risen in recent years. This paper offers some insights into the inequality measures and interpretations ...
• Effective Tax Rates and the User Cost of Capital when Interest Rates are Low 

  Creedy, John; Gemmell, Norman (Te Herenga Waka—Victoria University of Wellington, 2017)

  Interest rates are a key component of both user cost and effective tax rate measures of company taxation, and each is regularly used in empirical tests of tax impacts on investment. However, it is shown that when interest ...
• Illustrating Income Mobility: Two New Measures* 

  Creedy, John; Gemmell, Norman (Te Herenga Waka—Victoria University of Wellington, 2017)

  Jenkins and Lambert (1997) demonstrated that a number of measures of poverty could be combined and compared using the "Three Is of Poverty" (TIP) curve; the ‘three Is’ being the incidence, intensity and inequality of ...
• Distributional Comparisons Using the Gini Inequality Measure 

  Creedy, John (Te Herenga Waka—Victoria University of Wellington, 2021)

  This paper is aimed at undergraduate and graduate economics students, and public sector economists, who are interested in inequality measurement. It examines the use of the Gini inequality measure to compare income ...
• Golden Years – Understanding the New Zealand Superannuation Fund 

  Bell, Matthew (Te Herenga Waka—Victoria University of Wellington, 2021)

  The New Zealand Superannuation Fund (NZSF) is one of New Zealand’s largest publicly-owned financial assets. Its primary purpose is to act as an inter-generational tax smoothing vehicle, in order to assist future taxpayers ...

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