The modern idea of secured transactions is based on the notion of economic efficiency, which implies the minimization of transaction costs while ensuring optimal returns. The efficiency theory posits that unclear definitions and unprotected allocation of property rights inhibit the production of wealth, because they raise the transaction costs of land and impede exchange. The more precisely property rights are stated and assigned, the lower the cost of establishing ownership, and the extent of one's interest in any given piece of land.1 Proceeding from the efficiency theory, contemporary commercial practice is not willing to accommodate the ancient, unnecessarily complicated system of conveyancing, which makes the taking of security in real property expensive. Thus, an efficient regime of secured transactions should be simple, fast, cheap and predictable.