Opinion of the Justices

To the Honorable Senate:

The undersignéd justices of the supreme court return the following reply to the inquiries contained in your resolution adopted April 8, 1975, and filed with this court on April 11, 1975.

Economic legislation, like the regulation of finance charges, to be constitutional must be based on some substantial and rational foundation. Valley Bank v. State, 115 N.H. 151, 335 A.2d 652 (1975); Granite State Grocers Ass’n v. State Liquor Comm’n, 112 N.H. 62, 66, 289 A.2d 399, 402 (1972); Welch Co. v. State, 89 N.H. 428, 432, 199 A. 886, 888 (1938), aff'd, 306 U.S. 79 (1939).…