"this has been offset" is a correct and usable phrase in written English.
It can be used when referring to a balance or contrast between two things, where one has served as a counterbalance or counteract to the other. Example: "The decrease in sales has been offset by an increase in marketing efforts."
This has been offset by Simon Mignolet's sale to Liverpool.
The government has reduced its budget deficit (and therefore the amount of public "dissaving"), but this has been offset by a drop in private saving.
The share of manufacturing in GDP has fallen in the United States over the past two decades, but this has been offset by a rise in Japan.
Robust demand internationally has lifted the export figures, but this has been offset by a deterioration in domestic orders which is of real concern," said Ian McCafferty, the CBI's chief economic adviser.
A cutback in supermarket listing and promotion has meant that some own-label organic dairy sectors have seen declines, but this has been offset by growing sales of branded produce.
Northern Foods' ready meals business has been hit by tough trading conditions, the company said in an update, but this has been offset by good performances from its sandwiches, salads and Fox biscuits divisions.
But they also said that this had been offset by tougher American restrictions on special visas since the attacks of Sept. 11, 2001.
Elsewhere Northern Foods said in a trading update its ready meals business had been hit by tough trading conditions, but this had been offset by good performances from its sandwiches, salads and Fox biscuits divisions.
The bookmaker said tougher trading on the High Street had led to a 7% fall in bets made over the counter, although this had been offset to some extent by an increase in revenues from machines in its shops.
Wayne Rooney, whose spectacular drop off in form this season has been offset by his latest two performances – signified by a sublime back-heel flick against Swansea.
"The fact that this decline has been offset by an improvement in the letters business, which is not a long-term area of growth, and cost-cutting measures, may help in the shorter term, but these are both temporary reliefs".
