Patent ID: 7366679

Claim:
A residual value forecasting system, comprising: a secondhand price database device configured to store transaction data including a residual value that represents one of a secondhand circulating price that is less than an original price and a ratio of the secondhand circulating price to the original price of an object, attribute values of the object, and elapsed time of the object since an initial time that corresponds to the original price; processor configured for adjusting the residual value of the object included in the transaction data stored in said secondhand price database, based on an attribute value of a prescribed attribute of the object included in said transaction data, calculating a standardized residual value as if the attribute of the object is deemed to be a representative attribute value, and calculating a standardized forecast residual value in a prescribed future based on said standardized residual value and the elapsed time included in said transaction data, and calculating a non-standardized forecast residual value in the prescribed future by making adjustment, corresponding to the attribute value of the object of which residual value will be forecasted, to said standardized forecast residual value, wherein said calculating said standardized forecast residual value comprises: storing a standardized factor for each attribute value regarding the attributes of the object, wherein said standardized factor is structured as a multiplication coefficient or an add/subtract term to the residual value; a calculating standardized residual value by adjusting the residual value of the object included in the transaction data stored in said secondhand price database, based on the stored standardized factors corresponding to attribute values of the prescribed attribute of the object included in said transaction data; seeking a forecast function to calculate the expected value of the standardized forecast residual value based on said standardized residual value and the elapsed time included in said transaction data, wherein an exponential function is applied to said forecast function; and calculating the expected value of the standardized forecast residual value in the prescribed future, based on said forecast function.