Promoting Public Transit in Urban Areas with Incentives and Commitment

Cases
Bachman, W. , & Katzev, R. (1982). The effects of non-contingent free bus tickets and personal commitment on urban bus ridership. Transportation Research, 16A, 2, 103-108.
All three treatment conditions were successful in increasing bus ridership. Furthermore, these results were maintained during both follow up measurements. In contrast, there wa…

Increasing Paper Recycling in Portland Oregon Dormitories Using Incentives and Commitment

Cases
Wang, T. H. & Katzev, R. D. (1990). Group commitment and resource conservation: Two field experiments on promoting recycling. Journal of Applied Social Psychology, 20, 4, Part 1, 265-275.
During the intervention period, the three treatment groups showed a dramatic increase in recycling. Paper recycling for the group commitment, incentive and individual commitment …

Reducing Electricity and Natural Gas Consumption Using Feedback and Incentives in Voorschoten, Netherlands, ,

Cases
Midden, C. J., Meter, J. E., Weenig, M. H., & Zieverink, H. J. (1983). Using feedback, reinforcement and information to reduce energy consumption in
The information-only group had the least reduction in energy savings in both electricity (7.6%) and natural gas (0%). All three intervention groups had substantial reduction in e…

Pay-As-You-Throw in Pennsylvania

Cases
Currently, the PAYT program has been implemented in over 211 different communities in Pennsylvania. Across these municipalities, wide ranges of results have been found. The reduct…

Motivating Community Recycling: New Zealand Curbside Trial

Cases
Groups 2 and 3, the verbal commitment groups, recycled considerably more than the control group (who were not asked for a verbal commitment). Only 47% of the participants in group…

Giving Trash the Boot! German Fest & The Boot Mug

Cases
During the first year of the program, the boot mugs were sold for a dollar more than the cost of a regular beer. Within the first two and half-hours, all 5000 were sold. Some were…

WRAP (Waste Reduction Awards Program)

Cases
Since 1993, more than 2,800 California businesses have received WRAP awards and many of them have won multiple years. In addition, since 1996, ten companies are annually designate…

Students Teaching Students on the Importance of Using Both Sides of Paper, Conserving Energy, and Recycling

Cases
This procedure was repeated in June of 1996. Twenty five percent of the paper found in classroom recycling bins was used on both sides, and 46% of the waste in the classroom garba…

R-2000 Home Energy and Water Efficiency Program

Cases
Since the program began in 1982, more than 8,000 R-2000 houses have been built and certified. Consequently, manufactures have developed many unique building products, such as heat…

Shifting to Sustainable Modes of Transportation in Boulder Colorado Using Incentives, Norms, Communication and Feedback

Cases
Evaluation has revealed an increase in pedestrian trips by 3.5%, in bicycle trips by 2.2% and in transit trips by 1.7% Between 1990 and 1994, there was a 6% modal shift from sing…

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