TOKYO (AFX-ASIA) - The Cabinet Office said it left unchanged its estimate for third quarter GDP, at a fall of 0.5 pct quarter-on-quarter, as the improvement seen in corporate capital spending was offset by a downturn in household consumption. The annualised figure for the third quarter to September was slightly upgraded to a fall of 2.1 pct, from an initial 2.2 pct decline. "Corporate investment was upgraded due to a stronger performance in the financial and insurance sectors than we had previously thought," a Cabinet Office official said. Estimated corporate capital investment was upgraded to a rise of 1.6 pct quarter-on-quarter from 1.1 pct. However, household consumption was downgraded to minus 1.8 pct, from minus 1.7 pct, due to reduced health insurance costs. Nominal GDP was downgraded to minus 3.2 pct from minus 3.1 pct as a decline in building material prices dragged down prices. The adjusted GDP deflator was downgraded to minus 0.3 pct, from minus 0.2 pct on a quarter-on-quarter basis.