A new system of performance-related pay in schools risks fuelling a rise in fraud as teachers attempt to falsify pupils' results to win salary rises. Teachers could be tempted to "over-egg" children's work to prove they are doing a good job and the proposals could also lead to major employment disputes within schools if teachers who fail to receive higher pay lodge official discrimination claims.

Tens of thousands of students in universities across Britain have been caught cheating in exams and coursework – and the trend is on the rise, according to an investigation by The Independent. Over the past three years, more than 45,000 students at 80 institutions have been found guilty of "academic misconduct".

The University of Wales will cease to exist after mounting a series of damaging revelations. An investigation revealed last week that overseas students at Rayat London College, in Hounslow, were sold diploma exam answers in advance of taking the test.

There have been calls for Welsh universities to be more consistent in dealing with students who plagiarise. New figures show between 2008 and 2011, 927 students from six Welsh universities copied work.

A university has excluded 50 foreign students it believes used forged certificates to enhance their applications. It said it regretted having to exclude the students because many of them appeared to be victims of bogus "agents", based either in China or Britain (49 students came from China and one from Taiwan), who were paid to submit applications, including supporting documents, on their behalf. The forgeries, mainly certificates for English language qualifications or degrees awarded by other universities, are of such high quality that they could not have been detected by the usual checks carried out by admissions officers. The university is introducing a number of changes to its admissions procedures, one of which will be to draw up and publish on its website a list of approved agents.

People in Kenya, Tanzania and Uganda have been found buying fake degrees of all sorts from diploma mills and other bogus universities. Those universities have no physical existence and operate only through websites. Most diploma mills are operating from Britain or United States where academic standards are presumed to be very high. Recently, the Federal Bureau of Investigations compiled a list of over 10,000 persons who obtained fake degrees from diploma mills in USA. A significant number of them are from South Africa, Kenya and Nigeria. Currently, there are about 80 notorious diploma mills that operate from the United States and the UK.

A leaked e-mail from Manchester Metropolitan University shows how university staff are being urged to increase the number of top degree grades to keep pace with competing universities. The leaking of the e-mail provides further evidence of the concern among academics over the pressure to manipulate degree awards to improve the public image of universities and to make them more attractive to applicants. The number of students achieving a first class degree at UK universities has more than doubled since the mid-1990s.

Fake degrees from every university in Wales are being sold on the internet for less than £40 a go, a Wales on Sunday investigation has found. The website, called the Fake Certificate Factory, offers degrees from all of Wales' top universities – including Cardiff, Swansea, Glamorgan, Aberystwyth and Bangor. Wales on Sunday was able to buy a degree in English literature bearing the crest of Cardiff University for just £39.95, which we received the next day by post. And for an extra £49.95 we were offered a fake transcript, which provides a detailed breakdown of exam marks supposedly achieved by a student in their final university exams.

One-third of students admit to cheating at university by copying ideas from books or the internet according to a survey. Based on 1,022 undergraduates at 119 universities and colleges, the study found that one in six students admitted they copied work from friends while 10% said they looked for essays online. Male students were more likely to copy work from their friends (21%) than female students (14%), the study revealed.