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National Coalition of Independent Scholars (NCIS)

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[Research Interest]

- Methodology for measurement and analysis of economic inequality

- Statistical survey methods

[Publications]

∎ Peer Review Journal

Okamoto,
M. (2014). A Flexible
Descriptive Model for the Size Distribution of Incomes, *Economics
Bulletin*, **34**, 1600–1610.

Supplementary Tables and Charts.

Okamoto,
M. (2014). Interpolating the
Lorenz Curve: Methods to Preserve Shape and Remain Consistent with the
Concentration Curves for Components, *Review of
Income and Wealth*, **60**, 349–384.

Okamoto,
M. (2012). Evaluation of the
Goodness of Fit of New Statistical Size Distributions with Consideration of
Accurate Income Inequality Estimation, *Economics Bulletin*,
**32**, 2969–2982.

Erratum to
gEvaluation of the Goodness of Fit of New Statistical Size Distributions with
Consideration of Accurate Income Inequality Estimationh, *Economics
Bulletin*, **33**, 2443–2444.

Okamoto,
M. (2011). Source
Decomposition of Changes in Income Inequality: the Integral-based Approach and
its Approximation by the Chained Shapley-value Approach, *Journal
of Economic Inequality*, **9**, 145–181.

Okamoto,
M. (2009). Decomposition of
Gini and Multivariate Gini Indices, *Journal of
Economic Inequality*, **7**, 153–177.

∎ Working Paper

Okamoto, M. (2016). Mincer earnings regression in the form of the double Pareto-lognormal model, ECINEQ Working Paper Series, 407.

Okamoto, M. (2013). Extension of the k-generalized distribution: new four-parameter models for the size distribution of income and consumption, LIS Working Paper Series, 600.

Okamoto,
M. (2012). Comparison in Goodness of Fit between the Double-Pareto Lognormal
Distribution and the Generalized Beta Distribution of the Second Kind
(preliminary version, revised on May 28, 2013), *mimeo*. (under revision)

Okamoto, M. (2012). The Relationship between the Equivalence Scale and the Inequality Index and its Impact on the Measurement of Income Inequality, LIS Working Paper Series, 575.

∎ Meeting Paper

Okamoto, M. (2001). Midpoint-year Basket Index as a Practical Approximation to Superlative Index, Ottawa Group Sixth Meeting, Canberra, 2001.