The phrase 'greater transparency over' is correct and usable in written English.
You may use this phrase when you are referring to increased availability of information and increased access to the details of certain matters. For example, "The company has shown a commitment to greater transparency over their financial decisions."
That's why we worked closely together on the Sustainable Communities Act to devolve power and introduce greater transparency over government spending.
However, the fact of politicians mixing privately with tycoons has proved controversial and led for calls for greater transparency over such events.
Asked about Straw's comments, the prime minister's spokesman said: "The prime minister agrees with Jack Straw that there should be greater transparency over MPs' expenses.
We are also calling for greater transparency over windfall gains made by water suppliers, and more effective action to see these gains passed on to customers.
But she says that there are clear trends for more regular travel and greater transparency over fees, which could lead to keener competition over such foreign exchange charges.
The revelation is likely to embarrass the bank governor, Mark Carney, who has overhauled the central bank's operations and promised greater transparency over its decision-making.
Academics at the universities of Oxford and Stanford think Facebook should give users greater transparency and control over the content they see on its platform.
That problem prompted the Federal Trade Commission in a report last year to recommend that Congress enact legislation "to provide greater transparency for, and control over, the practices of information brokers".
The timing is also unfortunate for Obama because the killings of Awlaki and his son have contributed to demands in Congress for greater transparency by the White House over the legal basis for drone attacks on US citizens.
The home secretary should not be deterred from calling for greater transparency by fears of embarrassment over Andy Coulson's employment".
Protesters also this week packed the police commission meeting room, demanding everything from greater transparency to complete civilian control over the department.
