Table 2 Social integration index

F1 Social participation (45.42%)

Participate in the hometown associations

Temporary residence permit

F2 Governance participation (19.61%)

Management advice for their community and company

F3 Psychological identity (20.61%)

I like where I live right now

I focus on the change in my host city

I’m very willing to fit in with the local people

I feel local people are willing to accept me as one of them

I feel like I’m already a native

F4 Customs participation (20.61%)

It is more important to follow the customs

My hygiene habits are quite different from those of the local citizens