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Table 4 Multivariate Poisson regression: agroecological knowledge and centrality in the network of germplasm exchange (n = 363)

From: Tertius gaudens”: germplasm exchange networks and agroecological knowledge among home gardeners in the Iberian Peninsula

  Agroecological knowledge
Explanatory variables:  
Weighted degree (normalized) 0.004 (0.009)
Broker (normalized) 0.279*** (0.099)
Control variables:
Age −0.005 (0.002)
Male −0.084** (0.035)
Years gardening 0.007*** (0.001)
Network size 0.001 (0.010)
Schooling (ref. category no education)
Primary school −0.001 (0.048)
More than primary but without university degree −0.047 (0.057)
With university degree −0.095 (0.092)
Residency duration (ref category, never lived)
Between 1 and 5 years 0.101 (0.146)
Between 5 and 10 years 0.240* (0.131)
More than10 years 0.275*** (0.093)
Always resident 0.320*** (0.093)
R 2 0.18
  1. Note: For definition of variables see Table 1. Robust standard errors in parenthesis. *, **, and *** significant at the 10%, 5% and 1% level. Regressions contain a set of dummy variables for the network of data collection and a constant (not shown).