Multimedia environmental decision-making simulation

A Hypercard-based computer simulation is described here that allows testing and projections about decision making in commons dilemmas. Although the program applies to many different types of value tradeoffs, it focuses on issues related to the harvesting (and overharvesting) of natural resources. In particular, it uses the Atlantic fisheries to look at conflicts between satisfying immediate needs and protecting long-term sustainability. The program's calculations and projections are based on variables including fish stocks, replenishment rate, average household expenses, value per ton of fish, amount of fishing per year, number of competitors, harvesting strategy of competing decision makers, actual fish caught per year, yearly income, and the levels of harvesting that would maintain a sustainable level of the resource. The multimedia interface includes on-screen movies, moving graphs of results, still photos, cartoon animation, and audio inst ructions. This simulation program provides an engaging way of collecting data on decision making in social dilemmas and is also well suited to public/educational presentations.