Types of new industrial spaces	The city belonged	Economic characteristics
Strong center -strong region	Qingdao Yantai	Similar high values of principal component 1 indicating similar large economic scales of new industrial spaces. Principal component 2 is highly similar, indicating that layout of new industrial spaces in urban and suburb counties is relatively balanced. both urban and suburbs have strong economic strength. High tech zones occupy a certain proportion.
	Jinan Zibo	Similar relatively high Principal component 1 indicating similar relatively large economic scales of new industrial spaces. Principal component 2 is highly similar, indicating relatively balanced layout of NIS in urban and suburbs. The economic strength of suburban counties is relatively weak. High tech zones occupy a certain proportion.
	Weihai Rizhao	Principal component 2 is highly similar, indicating that layout of new industrial spaces in urban and suburb counties is relatively balanced. Similar low value of principal component 4, indicating the similarity in location conditions and foreign capital utilization.
Weak center -strong region	Weifang Jining	Relatively large economic scales of new industrial spaces. Relatively balanced layout of new induatrial spaces in urban and suburb counties. Large scope of suburb counties. Relatively strong economic strength of new induatrial spaces in suburb counties. Relatively weak economic strength Oof NIS in urban area.
Weak center -strong region	Dezhou Linyi	Relatively small economic scales of new industrial spaces. Relatively balanced layout of new induatrial spaces in urban and suburb counties. Large scope of suburb counties. Similar low value of principal component 4, indicating the low economic proportion of new industrial spaces in local economy.
Weak center-small region	Tai’an Dongying	Relatively small economic scales of new industrial spaces. Relatively small scope of suburb counties.
Weak center-small region	Zaozhuang Laiwu	Relatively small economic scales of new industrial spaces. Relatively small scope of suburb counties. Urban areas account for a large proportion.
Weak center-large region	Heze Liaocheng Binzhou	Balanced distribution of new industrial spaces between urban and suburb counties. Both the urban area and suburb counties have relatively weak economic strenghth. The development of high-tech parks lags behind. Similar low value of principal component 4, indicating the low economic proportion of new industrial spaces in local economy.