Table 3.

Costs of business-reply envelope returns and stamped envelope returns

	Scenario-1						Scenario-2
	Business-reply envelope response rate=50%			Stamped return envelope response rate=55%			Business-reply envelope response rate=80%			Stamped return envelope response rate=88%
	Unit cost	Number	Total cost	Unit cost	Number	Total cost	Unit cost	Number	Total cost	Unit cost	Number	Total cost
Cost of mailing
Postal cost for mailing out survey packet	¥120	10000	¥1200000	¥120	10000	¥1200000	¥120	10000	¥1200000	¥120	10000	¥1200000
Stamp for return envelope				¥120	10000	¥1200000				¥120	10000	¥1200000
Cost for postpayment by the recipient	¥135	5000	¥675000				¥135	8000	¥1080000
Total cost			¥1875000			¥2400000			¥2280000			¥2400000
Number of responses			5000			5500			8000			8800
Cost per response			¥375			¥436			¥285			¥273