The phrase "joint efforts of" is correct and usable in written English.
You can use it to describe when two or more people are working together on something. For example, "The joint efforts of the team led to the successful completion of the project."
Andreas Schmidt, president and chief executive of Bertelsmann E-commerce, said the decision did not scuttle the joint efforts of his company and Napster.
The job of conquering cancer is far from over, but to accomplish it will require the joint efforts of researchers, clinicians and especially every one of you.
United States policy should be an outgrowth of research protocols drafted through the joint efforts of research scientists, medical ethicists and legislators.
Whether that future is near or distant depends on the joint efforts of Africa's leaders and our national and global partners.
A motion-picture performance can be synthesized bit by bit, by the joint efforts of the actor, the director, the cameraman, and others.
"With joint efforts of all parties the G20 Hangzhou summit will achieve fruitful results, boost the confidence of countries in the world and inject new impetus to the global economy," he said.
The pope had previously articulated concerns about an American-led attack on Iraq, most notably on Christmas Day, when he beseeched people "to extinguish the ominous smoldering of a conflict which, with the joint efforts of all, can be avoided".
Denise Brown, the WFP's west Africa regional director, said: "We appreciate the joint efforts of the international community, especially the efficient collaboration of the UN agencies, that allowed food distributions at the airport to resume.
"It was the joint efforts of the Australian and PNG governments that has seen the asylum seekers brought into PNG and kept at the Manus Island Processing Centre against their will.
"Thanks to the joint efforts of U.S. and Colombia law enforcement, we wiped out an entire international heroin trafficking ring," said Donnie R. Marshall, the drug enforcement administrator, in a written statement.
With the joint efforts of many tens of thousands of organisations and individuals, we are only now beginning to repair some of the damage caused by the raging debate over Care in the Community in the mid to late 1990s.
