The official inflation figures due out today are misleading the public, according to international experts who say the data released every month in the UK understates the true increase in the cost of living.

The data, which compared homes bought by blacks and whites in the 1980's, may actually understate the disparity by not including property taxes for longtime homeowners.

The announcement was criticized by a growing number of economists and business people who insist that the official data greatly understate a flourishing efficiency in the workplace.

(Its data may even understate the increase because they exclude housing with mortgages of $320,000 or more.)

At the same time, some gauges of inflation moved higher and some traders and investors concluded that the new data understated the pace of growth.

But the data may understate how often companies and auditors part ways over accounting disputes because it is in neither side's interest to make such disagreements public.

But the military data may understate the problem because many applicants who suspect they are infected are tested privately and do not apply if the test is positive.

Mr. Graser said, though, that the data requested by The Times understated the extent of problems that occurred when airlines added more flights than the airport could handle.

This data may understate the number of Federal employees with disabilities since many employees elect not to complete this form.

This data may understate an actual increase in productivity due to the limitations discussed in section 3.2.