Advances in Joint Modelling: A Review of Recent Developments with Application to the Survival of End Stage Renal Disease Patients

The use of joint modelling approaches is becoming increasingly popular when an association exists between survival and longitudinal processes. Widely recognized for their gain in efficiency, joint models also offer a reduction in bias compared with naïve methods. With the increasing popularity comes a constantly expanding literature on joint modelling approaches. The aim of this paper is to give an overview of recent literature relating to joint models, in particular those that focus on the time‐to‐event survival process. A discussion is provided on the range of survival submodels that have been implemented in a joint modelling framework. A particular focus is given to the recent advancements in software used to build these models. Illustrated through the use of two different real‐life data examples that focus on the survival of end‐stage renal disease patients, the use of the JM and joineR packages within R are demonstrated. The possible future direction for this field of research is also discussed.     

Custom fabric ventures: An instructional resource in job costing for the introductory managerial accounting course

Job costing is a core foundational concept in the introductory managerial accounting course. The purpose of this instructional resource (IR) is to provide a thorough hands-on, active learning resource that will allow introductory students to experience a full set of accounting and management activities necessary to produce a job and assign production costs to it. For example, the IR requires students to analyze overhead costs, determine the optimal job size, schedule production, calculate the amount of materials to purchase, complete material requisitions, update raw materials records, analyze labor time records, complete a job cost record and address critical thinking questions. The IR was developed for use in a “flipped classroom” in which students work under the guidance of the instructor, but could alternatively be assigned as an unsupervised out-of-class assignment or on-line project. Since the IR was specifically developed as a learning tool for novice introductory managerial accounting students, adequate guidance is provided throughout the activity. However, to add realism and challenge students to think beyond the confines of simple mechanics, management and accounting issues are seeded throughout. Student feedback indicates that the IR not only helps students learn how a job costing system operates, but also helps students become aware of management decisions and accounting issues that impact the costs assigned to a job.     

Optimal tax depreciation

Currently, solutions to the choice of depreciation methods for tax purposes are obtained through numerical simulation. This paper presents a simple capital budgeting technique which, in conjunction with Descartes' rule of signs, analytically derives the optimal regular depreciation method under the existing U.S. tax code. This technique is then used to determine the optimal depreciable life for short-lived assets and, finally, the analysis is extented to cover the choice of depreciation methods under the Class Life Asset Depreciation Range System.     

Wine choice and drivers of consumption explored in relation to generational cohorts and methodology

The objectives of the present study were to: (1) assess the relative importance of driver and choice factors in wine consumption behaviour, (2) assess the impact of generational cohorts upon drivers of wine consumption and wine choice factors, and (3) compare the present study's survey results relating to wine choice to those obtained by means of Discrete Choice Analysis (DCA). A geographically balanced sample of 1,229 Australian wine consumers was obtained via means of telephone survey. The results of the present study indicate that taste is the primary choice and driver factor. The present findings failed to support the empirical literature's predications relating to generational cohorts and wine consumption behaviour. Further research is required in order to assess the suitability of making and marketing wine based on generational cohort characteristics. Finally, the findings of the present study suggest that, when it comes to wine choice, a simple, cost and time effective questionnaire that utilises indirect questioning may be equally as effective as DCA. If further research continues to show congruence between results collected using both methodologies, the research community may be behoved to continue the use of traditional survey methodology.     

Reassessing welfare reform data: a response to cherry

Abstract

This is a response to Robert Cherry's comment on the article, “Welfare as We [Don't] Know It: A Review and Feminist Critique of Welfare Reform Research” that appeared in the 10(2) issue of Feminist Economics. This response argues that while some combination of welfare reform, the booming economy in the late 1990s, and changes in economic policy all worked together to decrease caseloads and increase employment rates among welfare leavers, these are incomplete measures of the impact of welfare reform on the lives of lone mothers. This paper also argues that the effects of welfare reform on lone mothers are more mixed than Cherry acknowledges. This paper concludes that when one holistically examines low-income lone mothers' lives, it is premature to declare welfare reform a success.     

Book review

Tourism Marketing. By Salah Wahab, Jack Crampon, and L. Rothfield. London, England: Tourism International, 1976. 273 pp. U.S. $16.00

Tourism in the Bahamas and Bermuda: Two Case Studies. By Brian H. Archer. Bangor, Wales: University of Wales Press, 1977. Pp. ix, 87. £3.25

Park Planning Handbook: Fundamentals of Physical Planning for Parks and Recreation Areas. By Monty L. Christiansen. New York: John Wiley & Sons, Inc., 1977. Pp. xiv, 413. Hardcover: $18.95

Educating for Leisure‐Centered Living. By Charles K. Bright‐bill and Tony A. Mobley. (2nd Edition—Revised). New York: John Wiley and Sons, 1977. Pp. viii, 128. Paperback: $4.95

Private and Commercial Recreation: A Text and Reference. By Arlin F. Epperson. New York: John Wiley & Sons Publishing Company, Inc., 1977. Pp. 385. Hardcover: $15.95

The Economic Impact of Parks. A report prepared for the Federal/Provincial Parks Conference. By the Canadian Outdoor Recreation Research Committee. Toronto: Ontario Research Council on Leisure, 1975. Pp. 107. $4.50

A Model for Planning and Managing National Parks. By Laurence Prosser. Center of Leisure Studies, University of Oregon, 1977. Pp. 456. $25.00

Delivery of Community Leisure Services: An Holistic Approach. By James F. Murphy and Dennis R. Howard. Philadelphia: Lea & Febiger, 1977. Pp. vii, 219. Paperback: $9.75

Recreation Leadership. 3rd edition. By Maryhelen Vannier. Philadelphia: Lea & Febiger, 1977. Pp. 387. Hardcover: $12.50

Leisure: An Introduction. Edited by Hilmi Ibrahim and Fred Martin. Los Alamitos: Hwong Publishing Company, 1977. Pp. 360

Outdoor Recreation in America: Trends, Problems and Opportunities. 3rd edition. By Clayne R. Jensen. Minneapolis: Burgess Publishing Company, 1977. Pp. 269. Hardcover: $12.95

A Research Study into Provision for Recreation in the Highlands and Islands: Phase 1—Areas Affected by Oil‐Related Development. Research Reports 22, 23, and 31. Tourism and Recreation Research Unit, University of Edinburgh, Scotland, 1976 and 1977. Pp. 339, 411, and 145.

Research Study into Provision for Recreation in the Highlands and Islands: Phase 2—Regional Perspective: A Commentary by J. A. Long, J. T. Coppock, and B. S. Duffield. Research Report 37. Tourism and Recreation Research Unit, University of Edinburgh, Scotland, 1978. 110 pp.

The Environmental Impact of Outdoor Recreation. By Geoffrey Wall and Cynthia Wright. Waterloo, Ontario, Canada: Department of Geography Publication Series, Faculty of Environmental Studies. 1977, 69 pp. $5.00.

Avocational Counseling Manual—A Complete Guide to Leisure Guidance. By Robert Overs, Sharon Taylor, and Catherine Adkins. Washington, D.C.: Hawkins and Associates, Inc., 1977, 203 pp.

Leisure and Recreation: Introduction and Overview. By Clayne R. Jensen. Philadelphia: Lea & Febiger, 1977, 295 pp. Paperback $13.50.

The Joy of Sport. By Michael Novak. New York: Basic Books, 1976. Pp. 358. $10.95     

Demand,Information, and Competition: Why Do Food Prices Fall at Seasonal Demand Peaks?

Prices for seasonal food products fall at demand peaks. Price declines are not driven by falling agricultural input prices; indeed, farm to retail margins narrow sharply. I use electronic scanner data from a sample of US supermarkets to show that seasonal price declines are closely linked to market concentration, and are much larger in markets with several rivals than where a single brand dominates. Seasonal demand increases reduce the effective costs of informative advertising, and increased informative advertising by retailers and manufacturers in turn may allow for increased market information and greater price sensitivity on the part of buyers.