What describes the loss of market value from all causes?

The correct answer defines economic depreciation as the loss of market value from all causes. Economic depreciation refers to the decrease in the value of an asset over time due to various factors that can impact the market, such as changes in demand, technological advancements, wear and tear, and general economic conditions. It encompasses all reasons for value loss, rather than focusing on accounting methods or book values.

Appraising depreciation, while related to the assessment process, specifically refers to determining an asset's value based on various appraisal methodologies and does not generally encapsulate every cause of market value reduction. Book depreciation and accounting depreciation are terms used to describe systematic allocation of the cost of an asset over its useful life according to accounting principles; however, they reflect depreciation for financial reporting purposes and do not necessarily reflect real market conditions or value changes outside of financial entries.

Thus, economic depreciation is the comprehensive term that captures all possible sources of market value loss, making it the most appropriate choice in this context.