Melbourne Institute of Applied Economic and Social Research - Research Publications
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ItemUnderstanding the Rising Trend in Female Labour Force Participation(Wiley, 2022-12-28)Female labour force participation has increased tremendously since World War II in developed countries. Prior research provides piecemeal evidence identifying some drivers of change but largely fails to present a consistent story. Using a rare combination of data and modelling capacity available in Australia, we develop a new decomposition approach to explain rising female labour force participation since the mid-1990s. The approach allows us to identify the role of tax and transfer policy reforms as well as three other factors that have been shown to matter by earlier studies: (i) changes in real wages; (ii) population composition changes; and (iii) changes in labour supply preference parameters. For the first time, all these factors are identified through a single consistent decomposition framework. A key result is that – despite the ongoing emphasis of public policy on improved work incentives for women in Australia and elsewhere – changes in financial incentives due to tax and transfer policy reforms have contributed relatively little to achieve these large increases in participation. Instead, the other three factors drive the increased female labour force participation.
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ItemFuture Directions: Study Protocol for an Effectiveness-Implementation Hybrid Evaluation of a State-based Social Housing Strategy and Three Social Housing Programs(Edinburgh University Library, 2021)Background: In the Australian state of New South Wales nearly 60,000 approved applicants are waiting for social housing. Future Directions for Social Housing is a response to this challenge. This collection of housing programs aims to provide more social housing, support and incentives for leaving social housing and a better social housing experience. This document presents the protocol of the evaluation of these programs and the overarching Future Directions Strategy. Methods/Design: The evaluation will use a Type 1 effectiveness-implementation hybrid design, with an integrated, dual focus on assessing the effectiveness of Future Directions and better understanding the context for reform implementation. Program effectiveness will be examined using quasi-experimental techniques applied to linked administrative data. The implementation context will be examined via program level data, qualitative interviews and focus groups with stakeholders and tenants. Some quantitative survey and administrative data will also be used. Findings from the implementation evaluation will be used to inform and interpret the effectiveness evaluation. Economic evaluations will also be conducted. Discussion: This methodology will produce a high-quality evaluation of a large, complex government program which aims to facilitate rapid translational gains, real-time adoption of effective implementation strategies and generate actionable insights for policymaker
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ItemWhat accounts for the rising share of women in the top 1%?(Melbourne Institute: Applied Economic & Social Research, 2020-06-01)The share of women in the top 1% of the UK’s income distribution has been growing over the last two decades (as in several other countries). Our first contribution is to account for this secular change using regressions of the probability of being in the top 1%, fitted separately for men and women, in order to contrast between the sexes the role of changes in characteristics and changes in returns to characteristics. We show that the rise of women in the top 1% is primarily accounted for by their greater increases (relative to men) in the number of years spent in full-time education. Although most top income analysis uses tax return data, we derive our findings taking advantage of the much more extensive information about personal characteristics that is available in survey data. Our use of survey data requires justification given survey under-coverage of top incomes. Providing this justification is our second contribution.
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ItemThe effect of job search requirements on welfare receipt: Evidence from an Australian welfare reform(Melbourne Institute: Applied Economic & Social Research, 2020-09-01)Many countries impose job search requirements as a condition of unemployment benefit receipt, but there is relatively little evidence on the efficacy of these requirements. Australian reforms in 1995 and 2003 saw groups of welfare recipients newly subjected to job search requirements, providing an opportunity to identify their effects on welfare receipt. Using this quasi-experimental design and administrative data, we find negative effects on welfare receipt for the mature-age partnered women targeted by the reforms. We also find large negative effects on welfare receipt of their partners, suggesting family labour supply decisions were considerably affected.
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ItemHave tax-transfer policy reforms increased inequality?(Melbourne Institute of Applied Economic and Social Research, 2020-02-01)Australia has experienced 28 years of uninterrupted annual economic growth. Since reaching a peak of 11 per cent in 1993, the unemployment rate declined sharply and has been below 6 per cent for most of the period since mid-2003. Yet despite unprecedented economic expansion in Australia since the mid-1990s, fiscal reform has created a less progressive tax-transfer system, contributing to rising income inequality.
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ItemUnderstanding the rising trend in female labour force participation(Melbourne Institute of Applied Economic and Social Research, 2020-05-01)Female labour force participation has increased tremendously since World War II in developed countries. Prior research provides piecemeal evidence identifying some drivers of change but largely fails to present a consistent story. Using a rare combination of data and modelling capacity available in Australia, we develop a new decomposition approach to explain rising female labour force participation since the mid-1990s. The approach allows us to identify, for the first time, the role of tax and transfer policy reforms as well as three other factors that have been shown to matter by earlier studies. These are (i) changes in real wages, (ii) population composition changes, and (iii) changes in labour supply preference parameters. A key result is that –despite the ongoing emphasis of public policy on improved work incentives for women in Australia and elsewhere– changes in financial incentives due to tax and transfer policy reforms have contributed relatively little to achieve these large increases in participation. Instead, the other three factors drive the increased female labour force participation.
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ItemA microsimulation analysis of marginal welfare-improving income tax reforms for New Zealand(Springer Verlag, 2020)This paper examines the direction of welfare-improving income tax reforms in the context of New Zealand, which recently reduced its top marginal income tax rate to one of the lowest in the OECD. A behavioural microsimulation model is used, in which social welfare functions are defined in terms of either money metric utility or net income. The model allows for labour supply responses to tax changes, in which a high degree of population heterogeneity is represented along with the details of the highly complex income tax and transfer system. The implications of the results for specific combinations of tax rate or threshold changes that are both revenue neutral and welfare improving are explored in detail, recognising the role of distributional value judgements. Results suggest, under a wide range of parameter values and assumptions, that raising the highest income tax rate and/or threshold would be part of a welfare-improving reform package.
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ItemSurvey under-coverage of top incomes and estimation of inequality: what is the role of the UK’s SPI adjustment?(Wiley, 2018-06)Survey under-coverage of top incomes leads to bias in survey-based estimates of overall income inequality. Using income tax record data in combination with survey data is a potential approach to address the problem; we consider here the UK’s pioneering ‘SPI adjustment’ method that implements this idea. Since 1992, the principal income distribution series (reported annually in Households Below Average Income) has been based on household survey data in which the incomes of a small number of ‘very rich’ individuals are adjusted using information from ‘very rich’ individuals in personal income tax return data. We explain what the procedure involves, reveal the extent to which it addresses survey under- coverage of top incomes, and show how it affects estimates of overall income inequality. More generally, we assess whether the SPI adjustment is fit for purpose and consider whether variants of it could be employed by other countries.
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ItemTop incomes and inequality in the UK: reconciling estimates from household survey and tax return data(Oxford University Press, 2018-04-01)We provide the first systematic comparison of UK inequality estimates derived from tax data (World Wealth and Income Database) and household survey data (the Households Below Average Income [HBAI] subfile of the Family Resources Survey). We document by how much existing survey data underestimate top income shares relative to tax data. Exploiting the flexibility that access to unit-record survey data provides, we then derive new top-income-adjusted data. These data enable us to: better track tax-data-estimated top income shares; change the definitions of income, income-sharing unit, and unit of analysis used and thereby undertake more comparable cross-national comparisons (we provide a UK-US illustration); and examine UK inequality levels and trends using four summary indices. Our estimates reveal a greater rise in the inequality of equivalized gross household income among all persons between the mid-1990s and late 2000s than shown by the corresponding HBAI series, especially between 2004/05 and 2007/08.undertake more comparable cross-national comparisons (we provide a UK-US illustration); and examine UK inequality levels and trends using four summary indices. Our estimates reveal a greater rise in the inequality of equivalized gross household income among all persons between the mid-1990s and late-2000s than shown by the corresponding HBAI series, especially between 2004/05 and 2007/08.
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ItemSurvey Under-Coverage of Top Incomes and Estimation of Inequality: What Is the Role of the UK’s SPI Adjustment?(Melbourne Institute of Applied Economic and Social Research, 2017)Survey under-coverage of top incomes leads to bias in survey-based estimates of overall income inequality. Using income tax record data in combination with survey data is a potential approach to address the problem; we consider here the UK’s pioneering ‘SPI adjustment’ method that implements this idea. Since 1992, the principal income distribution series (reported annually in Households Below Average Income) has been based on household survey data in which the incomes of a small number of ‘very rich’ individuals are adjusted using information from ‘very rich’ individuals in personal income tax return data. We explain what the procedure involves, reveal the extent to which it addresses survey under-coverage of top incomes, and show how it affects estimates of overall income inequality. More generally, we assess whether the SPI adjustment is fit for purpose and consider whether variants of it could be employed by other countries.