The election was characterized by changes in the electoral law. Even if the general structure remained uncorrupted, the government introduced a superbonus of two thirds of seats in the House for the coalition which would obtain at-large the absolute majority of votes. The change was hugely opposed by the opposition parties as well as the smaller DC coalition partners, which had no realistic chances of success. The new law was called Scam Law by its detractors, including some dissidents of minor government parties who founded special opposition groups to deny the artificial landslide to the Christian Democracy.
In the 1950s Italy became a founding member of the NATO alliance (1949), a member of the United Nations (1955) and an ally of the United States, which helped to revive the Italian economy through the Marshall Plan. In the same years, Italy also became a founding member of the ECSC (1952) and of the European Economic Community (1957), later developed into the European Union. At the end of the 1950s an impressive economic growth was termed "Economic Miracle". Italian families used their newfound wealth to purchase consumer durables for the first time. Between 1958 and 1965, the percentage of families owning a television rose from 12% to 49%, washing machines from 3% to 23%, and fridges from 13% to 55%. As noted by the historian Paul Ginsborg
Christian Democracy's main support areas (sometimes known as "vote tanks") were the rural areas in South, Center and North-East Italy, whereas the industrial North-West had more left-leaning support because of the larger working class. An interesting exception were the "red regions" (Emilia Romagna, Tuscany, Umbria) where the Italian Communist Party has historically had a wide support. This is considered a consequence of the particular share-cropping ("mezzadria") farming contracts used in these regions.
The Holy See actively supported the Christian Democracy, judging it would be a mortal sin for a Catholic to vote for the Communist party and excommunicating all its supporters. In practice, however, many Communists remained religious: Emilia was known to be an area where people were both religious and communists. Giovanni Guareschi wrote his novels about Don Camillo describing a village, Brescello, whose inhabitants are at the same time loyal to priest Camillo and communist mayor Peppone, who are fierce rivals.
In 1953, a Parliamentary Commission on poverty estimated that 24% of Italian families were either “destitute” or “in hardship,” 21% of dwellings were overcrowded, 52% of homes in the south had no running drinking water, and only 57% had a lavatory. In the 1950s, several important reforms were launched: e.g. agrarian reform (legge Scelba), fiscal reform (legge Vanoni), and the country enjoyed a period of extraordinary economic development (miracolo economico, economic miracle). In this period of time, a massive population transfer, from the impoverished South to the booming industrial North, took place. This however exacerbated social contrasts, including between the old-established "worker aristocracy" and the new less qualified immigrants ("operaio-massa") of Southern origin. In addition, a wide gap between rich and poor continued to exist. By the end of the Sixties, it was estimated that 4 million Italians (out of a population of 54.5 million) were unemployed, underemployed, and casual labourers. As noted by the historian Paul Ginsborg, the affluent society to this section of the Italian population “might have meant a television set but precious little else.”
The complaint campaign of the oppositions against the Scam Law reached its goal. The government coalition (DC, PSDI, PLI, PRI, SVP, PSAZ) was stopped at an incredible 49.9% of national vote, resulting in the ordinary proportional distribution of the seats. Minor dissident parties resulted determinant for the final result, especially the short-lived National Democratic Alliance. Leading party Christian Democracy did not repeat the extraordinary result of five years before, which had been obtained under special conditions linked to the Cold War, and lost a lot of votes to the right wing, which included resurgent fascist politicians particularly in Southern Italy.
Technically, the government won the election, reaching the majority of seats in both houses. But the frustration for the lack of the expected result caused big problems to the leading coalition. De Gasperi was forced to resign by the Parliament on August 2: the Trentinstatesman consequently retired and died twelve months later. The legislature continued with weak governments, with minor parties refusing institutional responsibilities. Giuseppe Pella rose to power, but fell after five months only, following strong disputes about the status of the Free Territory of Trieste which Pella was claiming. Amintore Fanfani not receiving a vote of confidence, Mario Scelba and Antonio Segni followed with more traditional centrist coalitions supported by PSDI and PLI: under the administration of the first one, the problem of Trieste was closed ceding Koper to Yugoslavia. The parliamentary term was closed by the minority government chaired by Adone Zoli, finishing a legislature which hugely weakened the office of the Prime Minister, held by six different rulers.
^ abDue to impossibility of direct confrontation cause the end of the political alliance which linked the Communists and the Socialists during the previous election of 1948, unofficial swing was calculated using the strength ratio (130:53) between the communist group and the socialist group in the House after the division.