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. 2017 Nov 15;8:1990. doi: 10.3389/fpsyg.2017.01990

Table 4.

Difference-in-differences results (Norway and the United States).

(1)
Wave 2 -0.00354
(0.0106)
United StatesWave 2 -0.0501
(0.0280)
Constant 0.483∗∗∗
(0.00202)
Country FE Yes
Subject FE Yes
N 6960

Cluster-robust standard errors in parentheses (clustered on subject). p < 0.10, ∗∗p < 0.05, ∗∗∗p < 0.01. Reference group: Norway