The document defines an economic bubble as a trade in products or assets with inflated values that are sometimes referred to as speculative bubbles. It originated from the term "bubble" used to describe financial crises in the early 1700s. While bubbles can cause people to spend more due to feeling wealthier, they ultimately burst and leave those holding overvalued assets feeling less wealthy, with an overall negative economic impact. Some potential causes of bubbles include inflation and rising prices beyond an item's real value.