Ahead of a conference on Bosnian Croats which was to be held in a Zagreb hotel, Kosor told reporters that there was a discrepancy between what had been announced about the platform and what was presented earlier in the day.
She said that parts of the Opposition's platform were taken from the programme of her government, notably relating to the energy sector.
Kosor said that she had not managed yet to look at the programme but that she had seen comments in the media on what Zoran Milanovic, leader of the Social Democratic Party (SDP) had spoken about at presentations, and she held that the platform of the Alliance for Change "offered nothing encouraging" and that it contained nothing concrete "to be analysed at this moment".
Asked by reporters whether the ruling coalition would now hurry up with its platform, Kosor said that their platform was ready and that "we will present it when it suits us".
The programme will be comprehensive and broad, "covering all topics and segments of life in Croatia we deem to be of interest to the citizens," she said.