According to the present invention, a learning device is provided with a proposed interest rate acquisition means, a loan result acquisition means, and a learning means. The proposed interest rate acquisition means acquires interest rates on a loan application that were proposed by a plurality of lenders. The loan result acquisition means acquires the interest rate on the loan application at the time when the loan was established. Then, the learning means learns an appropriate interest rate prediction model with proposed interest rate as an explanatory variable and the interest rate at the time of loan establishment as a response variable.
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