Lower prices for energy (1.48 percent vs 4.74 percent in November) should be partially offset by a slightly rise in the cost of unprocessed food products (0.85 percent vs 0.58 percent).
Annual core inflation rate, which excludes energy and unprocessed food products components, is expected to increase to 0.57 percent from 0.49 percent in November.
On a monthly basis, consumer prices are set to decline 0.22 percent in December, following a 0.45 percent drop in the previous month.
The harmonized consumer price index is likely to rise 0.6 percent year-on-year (vs 0.9 percent in November) and to decrease 0.4 percent month-over-month (vs a 1 percent fall in November).