Do ecommerce firms perform better than non-ecommerce firms in Korea?

This paper describes and tests performance differences between ecommerce and non-ecommerce firms or establishments by using the 2010 Census for Korea. Although the number of ecommerce establishments makes up a small fraction of the economy, ecommerce establishments have a disproportionate weight in sales, employment, and wage. The paper finds that in manufacture ecommerce establishments have, on average, larger sales-per-worker and pay higher wage whereas in services ecommerce ones have higher sales-per- worker but pay no larger wage than their counterparts of a similar age and size in the same industry. It also adds quantile estimates showing that sales- per-worker differences between ecommerce and non-ecommerce establishments in manufacture are positive and statistically significant only at lower quantiles of the distribution. In services, sales-per-worker differences between them are positive and significant at most of distribution but turns to be negative, though not significant, at above upper quantile of the distribution.