Table 3 Statistical characteristics of the sample (Unit: person, %)

Status	Total	Real Estate worker		Public service performer		Graduate student
	152	86		32		34
Gender	Total		Male		Female
	152		96		56
Length of service	Total	Below 5 years		Below 10 years		10 years or more
	152	41		39		72
Real Estate (RE) field	Field	Frequency	Ratio	Field		Frequency	Ratio
	RE development	26	17.1	RE policy		15	9.9
	RE sales	4	4.6	RE research		13	8.6
	RE brokerage	11	7.2	RE management		12	7.9
	RE appraisal	9	5.9	RE financing		2	1.3
	RE auction	9	5.9	Graduate student		34	20.4
	RE consulting	5	3.3	Press		5	3.3
	RE information providing	7	4.6	Total		152	100