• Acknowledgements
  • Summary
  • 1. Introduction
  • 2. The study
  • 2.1 The structure of the study
  • 2.2 Main stage sample structure and attrition
  • 2.3 Data checking and cleaning
  • 3. The data obtained
  • 3.1 Gaps and imputation
  • 3.2 Examples of weekly income patterns
  • 3.3 Four-weekly income analysis and monthly incomes
  • 3.4 Total incomes across the year
  • 4. The trajectories followed by total family
  • incomes over the year5. The extent of income variability within the year
  • 5.1 The degree of variability in total income
  • 5.2 Implications for cross-sectional income measurement
  • 5.3 Implications for measuring income mobility
  • 6. Income variability by component
  • 6.1 Variability of income components for the
  • sample as a whole6.2 Variability of income components and
  • events during the year6.3 The effect of the new tax credit system
  • 7. Comparisons with administrative records
  • 7.1 Incomes reported to the study and to HMRC
  • 7.2 Tax credit awards and reported receipts
  • 7.3 Tax credit changes during the year
  • 8. Respondents’ views of income variability
  • 9. Conclusions
  • References