Links to social choice theory have shown that, similar to the problem of preference aggregation (Arrow 1951/1963; Sen 1970), a judgment aggregation procedure that satisfies a number of desirable properties does not exist.
Data envelopment analysis (DEA), a useful assessment tool, has been used to solve the problem of preference voting and aggregation which requires the determination of the weights associated with different ranking places.
Calculating cell abundance normalized to surface area of artificial substrate, rather than to the wet weight of macrophytes, eliminates complications related to the mass of different macrophyte species, problems of macrophyte preference by BHAB dinoflagellates and allows data to be compared across studies.
Although this assumption greatly limits the richness of the behavior of replicator dynamics, it enables us to focus on the problem of strand preference (see also Discussion).
Key challenges included a variety of technical problems, preference of some students for lectures, and reduced class attendance.
Nussbaum's approach takes on the problem of deformed preferences (see section 1.1.1) directly.
The problem of falsificating preferences by colluding individuals was dealt with for static revelation mechanisms or demand revealing mechanisms by some authors.
The problem of eliciting preferences and integrating them in a coherent decision is not a simple one.
We have recently addressed the problem of different preferences of health care providers and health care users [ 12] by comparing patients' decisions with the recommendations of international guidelines for neo-adjuvant or adjuvant radiotherapy in the treatment of colorectal cancer.
One problem for preference utilitarianism concerns how to make interpersonal comparisons (though this problem also arises for some other theories of value).
