Some Nontrivial Properties of a Formula for Compound Interest

• Tác giả: Isaac M Sonin, Mark Whitmeyer
• Ngôn ngữ: eng
• Ký hiệu phân loại: 517.31 [Unassigned]
• Thông tin xuất bản: 2018
• Bộ sưu tập: Metadata
• ID: 162249

Tóm tắt

We analyze the classical model of compound interest with a constant per-period payment and interest rate. We examine the outstanding balance function as well as the periodic payment function and show that the outstanding balance function is not generally concave in the interest rate, but instead may be initially convex on its domain and then concave.