A solar-assisted central hot water system was retrofitted onto one of the student dormitory complexes of the Ben Gurion University, Beer Sheva, Israel. The system consisted of twenty commercial solar collectors, of the pipe and plate type (1.78 m2/collector), and a 2 m3 central hot water tank...

This paper considers a model of reference-dependent utility in which the individual makes a conscious choice of her reference point for future consumption. The model incorporates the combination of loss aversion and anticipatory utility as competing forces in the determination of the optimal...

The standard framework for analyzing games with incomplete information models players as if they form beliefs about their opponents' beliefs about their opponents' beliefs and so on, that is, as if players have an infinite depth of reasoning. This strong assumption has nontrivial implications,...

We propose to strengthen Popper's notion of falsifiability by adding the requirement that when an observation is inconsistent with a theory, there must be a "short proof" of this inconsistency. We model the concept of a short proof using tools from computational complexity, and provide some...