Insider Trading. Insider trading is a poorly defined concept with roots in adverse selection theory and the efficient market hypothesis (EMH). The popular notion is that insiders have an unfair advantage because they possess materially significant and non-public information â an informational asymmetry.
In format, a letter of guarantee is normally a short document that addresses a specific transaction. The text contains data that establishes the identity of the buyer, his or her relationship with the bank, and the nature and general value of the asset that is pledged as collateral.
Letter (message) A letter is a written message from one party to another containing information. Letters promote the preservation of communication between both parties; they may bring friends or relatives closer together, enrich professional relationships and provide a means of self-expression. Letters contribute to the protection and conservation of literacy.