Gelbard became a Communist activist, involved in several causes, including Jewish armed groups defending the Jewish community in Tucumán from the abuses of local Nazi groups.
He joined the Democratic Union, a loose alliance against the populist candidate Juan Perón, during the 1945-46 electoral campaign.

Gelbard became involved in business politics, becoming a leader in the Chamber of Commerce in Catamarca.
He represented the small and medium business sectors, many of whose owners were immigrants and new businessmen.
He came to believe that the millions of small industries and merchants needed to unite to become a force that could negotiate with Perón's pro-labor forces.
He became the "national bourgeoisie's" principal ideologue, and "the most articulate advocate of an alliance between business, the state and labor, behind a federalist and nationalist economic program."

During this period, he helped organize the CGE (Confederación General Económica), a union of millions of industrialists and businessmen, with enough strength to negotiate with the government and labor unions.
In 1953, he traveled throughout the provinces organizing businessmen under the CGE and was named as its first president.

In 1954, Gelbard moved with his family to Buenos Aires.
He was soon appointed to Perón's cabinet as a minister without portfolio, working on economic issues.
He continued his fight for small and medium businesses, opposing perceived imperialist interests and agro interests that would have preferred a country of grain and cattle exporters.
He strongly opposed the philosophy of making Argentina 'The world's barn'.
The CGE executive committee also had strong representation in the government, sitting on the Comisión Económica Consultíva and participating in its numerous sub-committees: housing, prices, labor, foreign relations, transport and cost of living, for instance.

In 1955 a military coup d'etat toppled Perón.
The new military government prosecuted Gelbard and froze his assets, as he was a known advisor to Peron.
In later years, the generals called elections, there were new coups d'état, new presidents, and new elections.
Gelbard was always called in as an economic advisor of all subsequent presidents, whether generals or democratically elected.
In 1972, following a request from General Lanusse, then dictator, Gelbard negotiated the return of General Juan Perón from his exile in Madrid.

After many trips and secret negotiations, elections were called.
As Perón was still not allowed to be president, his associate Dr. Héctor Cámpora ran and was elected president on May 25, 1973.
At Perón's direction, Cámpora appointed Gelbard as minister of "economy, finance, public works and trade."

Cámpora stepped aside later that year and Peron was elected president.
His third wife, Isabel Perón, ran and won as his vice president.
Under Cámpora, Gelbard implemented "The Social Pact" (El Pacto Social), "cosigned in Congress by the CGE and CGT" which called for a freeze in prices and salaries so the country could progress economically, and for increased cooperation between business and government under a Three-Year Plan.
Public investment was featured in a dominant role in the plan, with a government group, Corporación de Empresas Nacionales (CEN), set up to oversee this.
It was to promote new industries and coordinate planning among different business sectors.
The Peron government also nationalized the banking industry.

Gelbard boosted exports by unilaterally lifting the Cuban blockade and selling one billion dollars in good to Cuba, including United States-branded cars manufactured in Argentina. (
The US was forced to accept this action after Gelbard threatened to close all US car factories in the country.)
He planned many economic missions.
Gelbard headed large groups of Argentine businessmen and industrialists on visits to Cuba, Venezuela, Chile, the Soviet Union, Poland, Hungary, Czechoslovakia and other countries.
On 1 July 1974, Perón died, leaving a divided party.
Isabel Perón, his widow, who had earlier been chosen Vice President as a comp
Gelbard became a Communist activist, involved in several causes, including Jewish armed groups defending the Jewish community in Tucumán from the abuses of local Nazi groups. He joined the Democratic Union, a loose alliance against the populist candidate Juan Perón, during the 1945-46 electoral campaign.
Gelbard became involved in business politics, becoming a leader in the Chamber of Commerce in Catamarca. He represented the small and medium business sectors, many of whose owners were immigrants and new businessmen. He came to believe that the millions of small industries and merchants needed to unite to become a force that could negotiate with Perón's pro-labor forces. He became the "national bourgeoisie's" principal ideologue, and "the most articulate advocate of an alliance between business, the state and labor, behind a federalist and nationalist economic program."
During this period, he helped organize the CGE (Confederación General Económica), a union of millions of industrialists and businessmen, with enough strength to negotiate with the government and labor unions. In 1953, he traveled throughout the provinces organizing businessmen under the CGE and was named as its first president. 
In 1954, Gelbard moved with his family to Buenos Aires. He was soon appointed to Perón's cabinet as a minister without portfolio, working on economic issues. He continued his fight for small and medium businesses, opposing perceived imperialist interests and agro interests that would have preferred a country of grain and cattle exporters. He strongly opposed the philosophy of making Argentina 'The world's barn'. The CGE executive committee also had strong representation in the government, sitting on the Comisión Económica Consultíva and participating in its numerous sub-committees: housing, prices, labor, foreign relations, transport and cost of living, for instance.
In 1955 a military coup d'etat toppled Perón. The new military government prosecuted Gelbard and froze his assets, as he was a known advisor to Peron. In later years, the generals called elections, there were new coups d'état, new presidents, and new elections. Gelbard was always called in as an economic advisor of all subsequent presidents, whether generals or democratically elected. In 1972, following a request from General Lanusse, then dictator, Gelbard negotiated the return of General Juan Perón from his exile in Madrid.
After many trips and secret negotiations, elections were called. As Perón was still not allowed to be president, his associate Dr. Héctor Cámpora ran and was elected president on May 25, 1973. At Perón's direction, Cámpora appointed Gelbard as minister of "economy, finance, public works and trade."
Cámpora stepped aside later that year and Peron was elected president. His third wife, Isabel Perón, ran and won as his vice president. Under Cámpora, Gelbard implemented "The Social Pact" (El Pacto Social), "cosigned in Congress by the CGE and CGT" which called for a freeze in prices and salaries so the country could progress economically, and for increased cooperation between business and government under a Three-Year Plan. Public investment was featured in a dominant role in the plan, with a government group, Corporación de Empresas Nacionales (CEN), set up to oversee this. It was to promote new industries and coordinate planning among different business sectors. The Peron government also nationalized the banking industry.
Gelbard boosted exports by unilaterally lifting the Cuban blockade and selling one billion dollars in good to Cuba, including United States-branded cars manufactured in Argentina. (The US was forced to accept this action after Gelbard threatened to close all US car factories in the country.) He planned many economic missions. Gelbard headed large groups of Argentine businessmen and industrialists on visits to Cuba, Venezuela, Chile, the Soviet Union, Poland, Hungary, Czechoslovakia and other countries. On 1 July 1974, Perón died, leaving a divided party. Isabel Perón, his widow, who had earlier been chosen Vice President as a comp
José Ber Gelbard