Tax–preferred savings accounts and marginal tax rates: evidence on RRSP participation

The effect of taxes on participation in Registered Retirement Savings Plans between 1982 and 1996 is studied. Interprovincial changes in the tax structure over this period provide identifying variation. Using this variation, I find that taxes influence households' participation decisions, but more weakly than previously estimated. A 10 percentage point increase in the marginal tax rate is estimated to increase the probability of participation by 8 per cent. This explains only 5.1 per cent of the trend in participation. I also find suggestive evidence that the carryforward mechanism may be used as an instrument for tax base smoothing. JEL Classification: H24
Comptes d'épargne fiscalement privilégiés et taux marginaux d'imposition : résultats sur la participation aux régimes enregistrés d'épargne retraite (REER). Ce mémoire étudie les effets du régime d'imposition sur la participation aux régimes enregistrés d'épargne retraite (REER) entre 1982 et 1996. Les changements dans la structure d'imposition d'une province à l'autre au cours de la période fournissent un éventail de possibilités. Utilisant cet éventail, l'auteur découvre que le régime fiscal influence les décisions de participer des ménages, mais plus faiblement qu'on l'avait estimé précédemment. Un accroissement de 10 pour cent dans le taux marginal d'imposition accroît la probabilité de participation de 8 pour cent. Voilà qui explique seulement 5,1 pour cent de la tendance dans la participation. L'auteur découvre aussi que le mécanisme de report dans le temps de la portion inutilisée de la contribution aux REER peut être utilisé comme instrument de lissage de la base de revenus imposables.     

Nature conservation for future sustainable shorelines: Lessons from seeking to involve the public

The soft coastline of eastern England is dynamic, with much of it subject to the risk of erosion or flooding. A number of internationally important coastal nature conservation sites are under threat. This paper explores the character and reasoning behind changing coastal management policies and governance practices in England. It reveals how Natural England is tackling these changes, notably with regard to establishing reconstituted nature conservation sites and re-designed coastlines. Such an approach requires the close involvement of policy leaders, agency officers, local maritime authorities and local residents. This paper explains how participatory processes play a critical role in the design of new coastlines that are ecologically and geomorphologically sustainable yet enable local communities to survive and flourish. A case study involving a visioning exercise at Winterton-on-Sea in Norfolk, UK, highlights the many practical difficulties around planning for the uncertain future of internationally important nature conservation sites, and local economies and communities. Future moves toward sustainable coastal alignments will have to involve a wide mix of public and civic bodies, as well as local communities, and will be underpinned by risk-based planning and well-researched adaptation and relocation arrangements.     

The stop-loss start-gain paradox and option valuation: a new decomposition into intrinsic and time value

The downside risk in a leveraged stock position can be eliminatedby using stop-loss orders. The upside potential of such a positioncan be captured using contingent buy orders. The terminal payoffto this stop-loss start-gain strategy is identical to that ofa call option, but the strategy costs less initially. This articleresolves this paradox by showing that the strategy is not self-financingfor continuous stock-price processes of unbounded variation.The resolution of the paradox leads to a new decomposition ofan option's price into its intrinsic and time value. When thestock price follows geometric Brownian motion, this decompositionis proven to be mathematically equivalent to the Black-Scholes(1973) formula.     

The effect of information releases on the pricing and timing of equity issues

With time-varying adverse selection in the market for new equityissues, firms will prefer to issue equity when the market ismost informed about the quality of the firm. This implies thatequity issues tend to follow credible information releases.In addition, if the asymmetric in information increases overtime between information releases, the price drop at the announcementof an equity issue should increase in the time since the lastinformation release. Using earning releases as a proxy for informativeevents, we find evidence supporting these propositions.     

收购旧设备及更新计划

<正> 南方公司是美国东南部5间受控管制公用电之控股公司,并为美国最大之电力生产商。南方电力是南方公司其中一间附属公司,在世界各地从事电力发展业务。其子公司亚洲电力发展有限公司发展项目遍布中国、菲律宾及亚洲其他地区。南电收购State Line发电设备的项目是更新旧电厂以提高效率、减低烟气排放及延长机组寿命的好例子。     

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.     

Self‐regulated learning in the workplace: strategies and factors in the attainment of learning goals

The research reported here is an exploratory qualitative study aimed at identifying professionals' self‐regulatory strategies underpinning the planning and attainment of learning goals in the workplace and showing how a number of organizational factors affect these strategies. The rationale for the study is that existing research tells us little about how professionals regulate their learning, largely because much of the literature on the self‐regulation of learning has been conducted with pupils and students in schools and universities rather than with professionals. Data were obtained through 29 semi‐structured interviews with professional employees in a company in the energy sector – including engineers, scientists and managers of various kinds – in 12 countries. Findings suggest that self‐regulatory learning practices in, from and for work are iterative and fluid rather than delineated into discrete stages as suggested by phase models of self‐regulation. There was little deliberate, systematic self‐reflection on learning in the workplaces studied. Learning goals were driven by short‐term work tasks and individuals' longer term development needs. Professionals draw extensively upon supervisors, mentors and colleagues when planning and attaining their learning goals. Formation of learning goals was constrained by individuals' perceptions of their career development potential and of how their progression potential is viewed by the organization in which they work.     

传统的会计方法会抑制技术革新吗?(下篇)

财务指标在决定一个项目是否应该上马时是十分重要的。但企业需要使用一系列会计和非会计方法来决定如何推进项目。     

The evolution of longevity: Evidence from Canada

Canadian men in the top earnings ventile live eight years (11%) longer than do men in the bottom ventile. For women, the difference is 3.6 years. This earnings–longevity gradient has shifted uniformly across earnings groups through time, in stark contrast to in the US. We demonstrate that the widely used period measurement method can differ from cohort measures. For middle‐aged men, we find a recent slowdown of mortality improvements, echoing the situation in the US. With comparable data, the Canadian earnings–longevity gradient is half the US gradient; but one quarter of this gap may result from Canada–US earnings differences.     

HOW HOUSEHOLD PORTFOLIOS EVOLVE AFTER RETIREMENT: THE EFFECT OF AGING AND HEALTH SHOCKS

We study how the portfolios of U.S. households evolve after retirement, using data from the Health and Retirement Study (HRS). In particular, we investigate the influence of aging and health shocks on a household's ownership of various assets and on the share of total assets held in each asset class. We find that households decrease their ownership of principal residences, vehicles, financial assets, businesses, and real estate as they age, while increasing the share of assets held in liquid assets and time deposits. We find that widowhood and other health shocks are associated with the same kinds of portfolio changes, and that the effect of shocks strengthens with time since the shock. Finally, we show that the effect of a shock is greatly magnified when households have physical or mental impairments. This suggests that factors other than standard risk and return considerations weigh heavily in many older households' portfolio decisions.