Taxation and top incomes in Canada

We estimate the elasticity of reported income with respect to tax rates for high earners using sub‐national variation across Canadian provinces. We argue this allows for better identification of tax elasticities than the existing literature. We find that elasticities of reported income at the provincial level are large for incomes in the top 1%, but small for lower earners. There are strong indications that the response happens both through earned and capital income. While our estimated elasticities are large, changes in tax rates cannot explain much of the overall long‐run trend of higher income concentration in Canada.     

New estimates of labour supply elasticities for married women in Canada 1996–2005

In this article, we estimate income and substitution labour supply and participation elasticities for Canadian married women using data from the Survey of Labour and Income Dynamics 1996–2005. We use the Canadian Tax and Credit Simulator (CTaCS) and detailed information on the structure of income at the household level to compute the marginal tax rates faced by each individual. We then use these marginal tax rates to compute net own-wage, spouse-wage, and nonlabour income. We show how the magnitude of the estimated elasticities varies depending on whether net or gross wages and income are used in the estimation procedure, and quantify biases caused by using average tax rates instead of marginal tax rates. Finally, because marginal tax rates vary significantly over the sample, we use quantile regressions to compare elasticities at different points of the hours distribution. Overall, our results show that public policies now have, on average, less scope for influencing hours of work than 10 years ago. However, the quantile results show that wives working fewer hours per week are more sensitive to changes in their own or spouses’ wages.     

Who benefits more from higher household consumption? The intra-household allocation of nutrients in China

Previous studies find that human capital investments in boys are less income elastic than investments in girls, attributing this result to favoritism toward boys. I show theoretically that it is plausible for more productive or favored household members to have higher income elasticities. I then investigate this question empirically, utilizing panel data on individual nutrient intake from the China Health and Nutrition Survey (CHNS) to analyze how changes in household per-capita nutrient intake affect the intra-household allocation of nutrients. To deal with potential biases due to omitted variables and simultaneity, I use measures of rainfall variation as instruments. I find that nutritional intakes are more elastic for males (especially prime-age men) than for females, and significantly less elastic for the elderly.     

Heroin Consumption,Prices and Addiction: Evidence from Self‐reported Panel Data*

Estimation models of drug demand should encompass the aspect of addiction. Here, we consider two static panel data regression models and two cross‐section models with lags or leads in drug consumption as additional regressors. Heroin injectors attending a needle exchange service in Oslo were interviewed twice, with a one‐year interval. Despite our relatively small sample, we obtain statistically significant price and income responses for nearly all of the models and specifications applied. The sample is split by dealing status, with dealers obtaining price elasticities in the range of [?0.15, ?1.51] and non‐dealers [?0.71, ?1.69]. Somewhat surprisingly, the estimates of the variance of the latent individual‐specific variable are rather low in the panel data models, although higher for non‐dealers than for dealers.     

Not by growth alone: The role of the distribution of income in regional diversity in poverty reduction

This study examines the role of the distribution of income in determining the responsiveness of poverty to income growth and changes in income inequality using panel data of 58 developing countries for the period 1980-1998. We show that the large cross-regional variation in the capacity of income growth to reduce poverty, i.e. the income elasticity, is largely explained by differences in the initial distribution of income and present region and time specific estimates of the income and Gini elasticities of poverty. We find that the income elasticity of poverty in the mid-1990s equals −1.31 on average and ranges from −0.71 for Sub-Saharan Africa to −2.27 for the Middle East and North Africa, and that the Gini elasticity of poverty equals 0.80 on average and ranges from 0.01 in South Asia to 1.73 in Latin America. Furthermore we show that while differing income growth rates account for most of the regional diversity in poverty trends, the additional impact of differences across regions in rates of inequality change and income and inequality elasticities of poverty is almost always significant and far too large to be ignored, most notably so in Eastern Europe and Central Asia.     

Social Security Income and Health Care Spending: Evidence from the Social Security Notch

In this paper, I exploit Social Security legislation changes to identify the causal effect of Social Security income on out‐of‐pocket medical expenditures of the elderly. Using the 1986–1994 Consumer Expenditure Survey and an instrumental variables strategy, the empirical results show that health care expenditures are responsive to changes in Social Security income for elderly individuals with less than a high‐school education. The estimated income elasticities are between 1.41 and 3.47, depending on the outcome measures, and are statistically significant at conventional levels. The findings are in contrast to existing studies that find a small income elasticity at the individual/household level.     

THE EFFECTS OF LOTTO GAME CHANGES AND LARGE JACKPOTS ON INCOME ELASTICITIES AND SALES

Using daily lottery data from Washington State by zip code from January 2011 through mid‐March 2016, we estimate that Powerball income elasticities range from ?0.16 to 0.16 as the Powerball jackpot increases from its minimum to $1.5 billion, while Mega Millions income elasticities range from ?0.08 to 0.03 as the Mega Millions jackpot increases from its minimum to $640 million. Controlling for jackpot size, each of three major game changes during this time period has a significant effect on own‐game and cross‐game sales. Despite these significant game changes, however, these lotto games are a highly regressive source of revenue for Washington State. (JEL H22, H71, L83)     

Income and price elasticities of electricity demand in Australia: Evidence of state‐specific heterogeneity

This paper estimates country‐wide and state‐level income and price elasticities of electricity demand in Australia for the period 1999Q1–2013Q2 using the National Electricity Market data and the autoregressive‐distributed lag model. The results suggest that the long‐run income and price elasticities are inelastic and are statistically significant with theoretically consistent signs. The country‐wide income and price elasticities are estimated to be 0.41 and ?0.38, respectively. It is also found that there exists state‐specific heterogeneity in both speed and magnitude of the electricity consumption adjustment in response to changes in income and electricity price. These results have important policy implications, including the need to use state‐specific elasticities in the scenario analysis of the energy pricing policy.     

Consumption,Income, and Wealth: Evidence from Age,Cohort, and Period Elasticities

This paper examines the relationship between non‐durable consumption, income, and wealth (housing and financial) allowing explicitly for generational heterogeneity. A framework is proposed to disentangle cohort, age, and period effects and the empirical analysis is based on the U.S. Consumer Expenditure Survey data. We find that there are significant generational differences and the results highlight the range of elasticities implicit in results presented, thus far, by age groups. Moreover, we find supporting evidence of humped shaped age profiles for the elasticity of consumption with respect to income and the importance of financial wealth for those aged 60+. The framework also allows us to generate cohort profiles which draw attention to the negative role of housing wealth for generation X, and period profiles which reinforce the role of financial wealth for the baby‐boom generation.     

THE BUILT-IN FLEXIBILITY OF INCOME AND CONSUMPTION TAXES IN NEW ZEALAND

This paper provides estimates of individual and aggregate revenue elasticities of income and consumption taxes in New Zealand, based on the 2001 tax structure and expenditure patterns. Using analytical expressions for revenue elasticities at the individual and aggregate levels, together with a simulated income distribution, values for New Zealand were obtained. Results using equi-proportional income changes suggest that the aggregate income and consumption tax revenue elasticities are both fairly constant as mean income increases, at around 1.3 and 0.95 respectively. This latter estimate assumes that increases in disposable income are accompanied by approximately proportional increases in total expenditure. If there is a tendency for the savings proportion to increase as disposable income increases, a somewhat lower total consumption tax revenue elasticity, of around 0.9, is obtained for 2001 income levels. However, non-equiproportional income changes are more realistic. Allowing for regression towards the geometric mean income reduces these elasticities, giving an elasticity for income and consumption taxes combined that is only slightly above unity. Examination of the tax-share weighted expenditure elasticities for various goods also revealed that, despite the adoption of a broad based GST at a uniform rate in New Zealand, the persistence of various excises has an important effect on the overall consumption tax revenue elasticity, especially for individuals at relatively low income levels.     

How Elastic is East Asian Demand for Consumption Goods?

This paper investigates import demand in East Asia. Estimating exchange rate elasticities for countries in the region is difficult because many imports are used to produce goods for re‐export. An exchange rate appreciation that reduces East Asian exports will also reduce the demand for imported inputs that are used to produce exports. To correct for this bias this paper examines consumption imports, since these goods are intended primarily for the domestic market. Results from several specifications indicate that currency appreciations and increases in income in East Asian countries would significantly increase imports into the region.     

新型农村合作医疗保险与居民营养结构的改善

改革开放以来,中国实施的居民社会福利领域的一系列改革,对居民营养结构的改善有着显著的影响。借助相关数据,采用极大似然估计,本文对2003年开始实施的新型农村合作医疗保险与居民营养结构的关系进行了实证研究。结论表明在控制人均实际收入后,参加新农合的家庭显著增加其每日人均热量摄入量。对不同收入阶层该影响程度也不一致,新农合使低收入家庭比中高收入家庭人均每日多摄入111.5卡热量。从营养结构上看,新农合显著增加家庭人均蛋白质、脂肪的摄入量,但对碳水化合物的摄入量没有显著影响。要改善家庭营养结构,除了增加家庭可支配收入以外,家庭未来不确定性的降低也不可或缺。     

The effect of universal child benefits on labour supply

Using a difference‐in‐differences estimator, I find the Canadian Universal Child Care Benefit has significant negative income effects on the labour supply of married individuals. The likelihood of lower‐educated mothers to participate in the labour force is reduced 3.2 percentage points when receiving the benefit. Median hours worked per week among lower‐educated mothers is reduced by 1.9 hours. The effects on higher‐educated mothers are substantial, with median hours worked among higher‐educated mothers reduced by nearly one hour per week. For men, the evidence suggests small but significant income effects on labour supply, consistent with the literature on labour supply elasticities.     

Fiscal Incidence in Ghana

We use methods developed by the Commitment to Equity Institute to assess the effects of government taxation, social spending and indirect subsidies on poverty and inequality in Ghana. We also simulate several policy reforms to assess their distributional consequences. Results show that, although the country has some very progressive taxes and well‐targeted expenditures, the extent of fiscal redistribution is small, but about what one would expect given Ghana's income level and relatively low initial inequality. Results for poverty reduction are less encouraging: were it not for the in‐kind benefits from health and education spending, the overall effect of government spending and taxation would actually increase poverty in Ghana. Eliminating energy subsidies and at the same time reallocating part of the savings to well‐targeted transfer programs could lower the fiscal deficit while reducing inequality and protecting the poor.     

ESTIMATES OF THE PRICE ELASTICITY OF SWITCHING BETWEEN BRANDED AND GENERIC DRUGS

We estimate price elasticities of switching from branded to generic drugs for two widely used drugs: Prozac and Zocor. We find the price elasticity of switching varies by drug and is between 0.01 and 0.10. While elasticity estimates for Zocor are robust to the inclusion of controls for supply‐side factors, those for Prozac are not. Our results indicate consumers in managed care plans are most responsive to differences in out‐of‐pocket (OOP) cost, and we estimate that a 10% increase in the OOP cost difference between Zocor and generic Simvastatin increases an individual's probability of switching to the generic by approximately 0.3%. This would result in a modest total savings of $36,700 among our sample of 114,218 privately insured Zocor users. Our finding that individuals are relatively unresponsive to the lower prices caused by generic introduction implies that policies targeting supply‐side behavior are likely to have a larger effect on generic uptake than price‐based inducements. If generic‐uptake did occur immediately within the first 18 months after generic introduction, the total savings among individuals and insurance companies within our sample would be approximately $7 million for Zocor and $255,000 for Prozac. (JEL I11, I18)     

Assessing the Impact of FCC Lifeline and Link-Up Programs on Telephone Penetration

Lifeline programs sponsored by the Federal Communications Commission (FCC) in cooperation with the states and Local Exchange Companies (LECs) are authorized to increase telephone penetration. Estimates of a variant of Perl's (1983) economic model with 1990 Census Data broken to the state level indicate that expenditures on these programs have a positive statistical effect on telephone penetration in most models. However, program elasticities are extremely small, suggesting that very large expenditure increases per poor household would have little effect on telephone penetration. Importantly, there is no relationship between the size of the state program elasticity and the level of state income or the magnitude of state poverty. We also demonstrate that the 1990 Census Data is superior to the Current Population Survey as a data base.     

Does the distinction between gross and value‐added exports matter? An empirical investigation of export elasticities

This study uses bilateral U.S. export data from the OECD’s Trade in Value‐Added database to estimate and compare elasticities for three distinct export measures: conventional measures of gross exports, domestic value added in gross exports, and value‐added exports. It finds little evidence of significant differences in the income elasticities across the three export measures or in the price elasticities of gross exports and domestic value added in gross exports. However it finds a significantly higher price elasticity for value‐added exports, suggesting that conventional price elasticity estimates may underestimate the impact of a real dollar depreciation on U.S. exports of value added.     

人民币升值能解决美国对华贸易赤字吗?——基于1994～2005年间月度数据的贸易弹性分析

文章以1994年1月到2005年3月的月度数据为样本,用ARDL框架下的协整方法,对中美贸易的收入弹性和实际汇率弹性进行了经验分析。分析后发现:第一,我国对美进出口的收入弹性都是显著的,并且我国对美国出口的收入弹性约为我国从美进口的收入弹性的6倍,但是我国对美进口和出口的实际汇率弹性都是不显著的。因此,文章认为人民币汇率对中美贸易没有显著影响,人民币汇率升值将无法改善美国的对华贸易收支。     

Evaluating the performance of means-tested benefits in Bulgaria

Using household survey data and microsimulation techniques, we analyse the performance of three means-tested benefits in Bulgaria. We find that the transfers reach a small proportion of households with incomes below a relative poverty line, they have high non take-up rates, and large proportions of the recipients are neither poor nor entitled to receive the benefits. Unsurprisingly, although an important income source for poor households, the benefits have a very small impact on reducing the poverty rates. We show that our results are robust to potential underreporting of benefit receipt in the household survey. Finally, we analyse the effect of five reform scenarios, one of which fiscally neutral, on poverty and find that there is a large scope for policy improvement.     

Analysing Recent Changes in Indigenous and Non‐Indigenous Australians' Income: A Synthetic Panel Approach

Data from the 1986, 1991 and 1996 censuses are used to conduct a synthetic cohort analysis of the income distributions for Indigenous and non‐Indigenous males and females. The advantage of this approach is that statistical techniques can be used to control for unobservable differences between the Indigenous and non‐Indigenous populations, such as ability and schooling quality, as well as assimilation, discrimination and other attitudes. The results demonstrate that the failure to control for unobserved differences in existing studies of Indigenous income will induce a significant bias in both empirical and policy analysis. Trends in relative income are also identified and are related to broad changes in labour force status. The deliberate policy shift in the early 1990s to paying welfare to individuals (‘individualisation’) has resulted in an increase in financial independence among many females. The other insight from the analysis is that the generosity of welfare payments or improved targeting of benefits has materially advantaged extremely poor Indigenous people. While this is a positive outcome in its own right, policy also needs to take into account the interaction between tax, welfare, productivity and incentives to work.