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It is clear that these two perspectives will draw swords against the other person very often. Although a lot of people agree that efficient financial markets are great for everyone, the steps that government need to take to acquire there often run counter towards the microeconomic interests of business. Sometimes a merger has to be blocked to foster competition. Sometimes disclosures have to be legislated to ensure that buyers and sellers could make informed decisions. And sometimes certain activities must be regulated or prohibited to ensure that some usually are not financially harmed by others. One of the easiest ways that companies can avoid animal testing is to work with products that are actually extensively utilized in human history and still have proven their safety after a while. Companies also can depend on data from natural and synthetic substances that are already previously tested on animals. Computer modeling and databases may be used to determine biological properties of ingredients making risk assessments.