“The grandfather helped bring about the government of the grandkids,” said Mario Calabresi, the editor in chief of the Turin daily newspaper La Stampa.

Image Emma Bonino, left, was selected as foreign minister, and Fabrizio Saccomanni was selected as finance minister. Credit... Left: Mychele Daniau/AFP-Getty; Gabriel Bouys/AFP-Getty

Cécile Kyenge, an ophthalmologist and native of the Democratic Republic of Congo, was named minister of integration, Italy’s first nonwhite minister, while Josefa Idem, a German-born Olympic gold medal kayaker, will be minister of equal opportunities and sports. Ms. Kyenge’s nomination was already being contested by the anti-immigrant Northern League.

Enrico Giovannini, the director of Istat, Italy’s national statistics agency, will be labor minister, responsible for implementing changes to the pension law under the Monti government, and Anna Maria Cancellieri, the interior minister in the Monti government, will be justice minister.

“This government has a strong basis with very experienced people in key positions,” said Gianfranco Pasquino, a political science professor at John Hopkins University’s school of international studies in Bologna, Italy. “It is also remarkably young, and new ideas are useful and refreshing also in this country. It also has many women, who can express a very different point of view from what bad politics has expressed so far.”

It is also likely to urge European leaders to ease up on the austerity agenda.

“The paradox is that Letta, who is one of the most Europeanist leaders in Italy, had to go to Europe and say, ‘If this is how Europe is going, we won’t stand for it,’ ” said Marco Damilano, a political correspondent for the center-left weekly L’Espresso.

As in Greece, where a three-party coalition has held together since June out of fear of extinction and lack of viable alternatives, analysts said that in Italy, the duration of the government largely depends on the economy. Unemployment is above 11 percent, rising to 38 percent for young people, and in June, a government-sponsored furlough program is set to expire for many businesses, which could lead to social unrest.

The duration also depends on the kind of structural changes the government will be able to carry out, including an overhaul of Italy’s electoral law, which is designed to ensure instability. Until that is changed, no party in the coalition is likely to want to force early elections for fear that they will produce the same divided result.