The Market for Lemons cars, the dearth of formal credit markets in developing countries, and the difficulties that the elderly encounter in buying health insurance. However, not all players in a given market will follow the same rules or have the same aptitude of assessing quality. So there will always be a distinct advantage for some vendors to offer low-quality goods to the less-informed segment of a market that, on the whole, appears to be of reasonable quality and have reasonable guarantees of certainty. This is part of the basis for the idiom buyer beware. This is likely the basis for the idiom that
Beware the Fish Beware the Fish Beware The Fish! is the third installment in the Macdonald Hall Series, and it continues to follow the two main characters Bruno and Boots along with the ensemble students of Macdonald Hall. This, along with "The Zucchini Warriors", is one of the few titles in the series which didn't have a title change like the rest of the books did. And like all the other books, it received new, younger-appealing cover art and was rewritten to apply to today's society, economy and technology. It was written in 1980 by Gordon Korman. Macdonald Hall is having a severe