Which data types are included in the market data portion of data collection and maintenance?

The market data portion of data collection and maintenance primarily includes sales data, cost data, and income data because these elements are essential for understanding the dynamics of the market and assessing property values. Sales data provides information on recent transactions, which helps establish current market trends and allows for the comparison of similar properties. Cost data is relevant as it reflects the expenses associated with producing or maintaining properties, thus informing potential investment returns. Income data is critical in evaluating the profitability of rental or investment properties, aiding in the assessment of their overall value.

Other options may include valuable information but they do not focus specifically on the primary financial indicators that impact market valuation. Historical data and market trends, while useful, tend to focus on past performance rather than current market conditions; statistical analyses and projections provide insights but are more supportive tools rather than core market data; and customer feedback and surveys may reflect perceptions of value and satisfaction but do not directly influence the transactional aspects of real estate appraisal.