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Table 8 Additional control variables

From: The capital market spillover effect of product market advertising: Evidence from stock price synchronicity

Variable 

(1)

(2)

Syn

Syn

Ad

−1.070a (−3.97)

−1.063a (−3.94)

Debt

−0.260a (−4.27)

−0.263a (−4.32)

Size

0.017 (1.03)

0.017 (1.06)

Mb

−0.043b (−2.38)

−0.044b (−2.40)

Turnover

−0.109a (−12.28)

−0.108a (−12.16)

Big4

−0.135a (−3.24)

−0.136a (−3.24)

Age

0.050a (2.84)

0.050a (2.83)

Roa

−0.051 (−0.26)

−0.048 (−0.24)

Institution

−0.241a (−4.67)

−0.240a (−4.63)

Top1

−0.183a (−2.74)

−0.179a (−2.68)

Msh

0.014 (0.68)

0.014 (0.68)

Independent

0.088 (0.56)

0.079 (0.51)

HHI

−0.687a (−2.64)

 

Indn

 

1.674c (1.96)

_Cons

0.314 (0.84)

0.242 (0.65)

Year fixed effects

Yes

Yes

Industry fixed effects

Yes

Yes

No. of obs.

9,360

9,360

Adj. R2

0.325

0.324

  1. Notes. Numbers in parentheses are t-statistics based on standard errors clustered by firm when we control for year and industry effects. a, b, and c denote statistical significance at the 1%, 5%, and 10% levels, respectively