--- a/src/economy_type.h	Sat Jan 12 13:36:22 2008 +0000
+++ b/src/economy_type.h	Sat Jan 12 14:10:35 2008 +0000
@@ -127,4 +127,10 @@
 	INVALID_EXPENSES      = 0xFF,
 };
 
+/* The "steps" in loan size, in British Pounds! */
+enum {
+	LOAN_INTERVAL        = 10000,
+	LOAN_INTERVAL_OLD_AI = 50000,
+};
+
 #endif /* ECONOMY_TYPE_H */