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Table 5 Interaction model between occupational interaction and unit nature N = 2536

From: Occupational interactions and income level: a social capital study using the first-order difference method

Variable

Least squares method model

First-order difference model

M1

M2

M3

Explanatory variable

Monthly income of first job

Monthly income of present job

Monthly income difference

Internal interaction

−.0005

−.018

−.003

(.007)

(.015)

(.009)

Outward interaction

.024*

.047**

.028**

(.009)

(.013)

(.008)

State-owned unit

−.393*

−.119

−.270*

(.122)

(.103)

(.127)

Internal interaction × state-owned sector

−.001

.013

.026

(.013)

(.014)

(.019)

Internal interaction × state-owned sector

−.008

−.032**

−.023*

(.011)

(.008)

(.010)

Seeking job by pulling strings

.099**

.008

.037

(.015)

(.049)

(.035)

Male

−.078**

−.115**

(.013)

(.024)

Age

.026

.001

.029**

(.011)

(.011)

(.007)

Square of age/100

.021

−.132

−.029*

(.027)

(.015)

(.010)

Education level

.044***

.057***

.080***

(.004)

(.009)

(.009)

Party member

.089

.136*

.273**

(.059)

(.065)

(.062)

Frequency of changing jobs

.007

−.011

(.006)

(.013)

Unit size/100

−.001

.036**

.001

(.001)

(.007)

(.001)

Administrative staff

.083

.187**

.175***

(.030)

(.021)

(.026)

Category of employment (10 categories)

Yes

Yes

Yes

Intercept

.062

.730

.907**

(.137)

(.252)

(.229)

R square

.398

.233

.110

Sample size

2536

2536

2536

  1. Note: (1) *p < 0.05, **p < 0.01, ***p < 0.001. (2) Values inside the parentheses are standard errors obtained by taking heteroskedasticity robustness and urban cluster robustness into account. (3) “Yes” means that this variable is controlled for in the model. (4) In a difference model, an explanatory variable corresponds to the change value; for specifics, please refer to notes below Tables 3 and 4