The conservatives and the SDP differ on the measures needed to stabilise the Finnish economy, the researcher added.
On Monday, both the chair of the Center Party, Annika Saarikko, and the chair of the Greens, Maria Ohisalo, said that their parties would go into opposition following their losses.
Markku Jokisipila, director of the Center for Parliamentary Studies at Turku University, told the newspaper Turun Sanomat that a possible refusal by the Center Party to take government responsibility would weaken the chances of the Finns to get into the government and could lead to the formation of a coalition of the conservatives and the SDP, especially "if the Greens would be willing to take part after their major losses".
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For a possible coalition option between the conservatives and the Finns, the Swedish People's Party's attitude could be important, Elina Kestila-Kekkonen, professor of political science at Tampere University, said on national radio Yle.
The conservatives and the Finns would have 94 MPs based on initial election results, which are to be confirmed on Wednesday.
However, with the help of Christian Democrats and the "Movement Now", they would reach 100 seats and would thus need the Swedish People's Party.
Despite the huge problems to be tackled during the coalition talks, the likelihood of a minority government is very low, Jokisipila said.
The last time Finland had a minority government was in 1976.
