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The merged data set includes 931,773 observations at the firm–product–year level for 1,256 unique companies in manufacturing between 2005 and 2011. Table 1 provides summary statistics for the baseline estimation data set, which has 387,709 observations after inclusion of the full set of fixed effects.14

Table 1.
Summary Statistics
 Mean (1) SD (2) P25 (3) P50 (4) P75 (5) Observations (6) 
Product characteristics       
Export value (GBP) 181,507 601,514 1,140 8,083 57,627 387,709 
Net mass (in kilogram) 24,498 104,324 12 132 2,280 387,709 
Average value (per kilogram) 337 930 8.0 34.8 199 387,709 
Firm characteristics       
Log sales 16.6 1.8 15.4 16.4 17.5 7,420 
Intrafirm trade 0.72 0.45 7,420 
Profit making 0.39 0.49 7,420 
Country characteristics       
Low-tax country dummy 0.54 0.50 686 
Low-tax wedge (τUK-τj,%7.44 5.68 2.5 11.5 187,795 
High-tax wedge (τj-τUK,%5.36 4.16 7.25 199,914 
 Mean (1) SD (2) P25 (3) P50 (4) P75 (5) Observations (6) 
Product characteristics       
Export value (GBP) 181,507 601,514 1,140 8,083 57,627 387,709 
Net mass (in kilogram) 24,498 104,324 12 132 2,280 387,709 
Average value (per kilogram) 337 930 8.0 34.8 199 387,709 
Firm characteristics       
Log sales 16.6 1.8 15.4 16.4 17.5 7,420 
Intrafirm trade 0.72 0.45 7,420 
Profit making 0.39 0.49 7,420 
Country characteristics       
Low-tax country dummy 0.54 0.50 686 
Low-tax wedge (τUK-τj,%7.44 5.68 2.5 11.5 187,795 
High-tax wedge (τj-τUK,%5.36 4.16 7.25 199,914 

This table lists the summary statistics for the key variables in this paper's main estimation sample from 2005 to 2011.

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