The phrase 'has been increased emphasis' is correct and usable in written English.
You can use it to refer to a recent increase in the emphasis or importance placed on something. For example: "Recent education reforms have placed an increased emphasis on STEM subjects."
There also has been increased emphasis on the interdependence of monetary and other national economic policies, especially fiscal and debt-management policies.
The magazine still publishes long articles on the cultural and political life of the city, but under Primedia, there has been increased emphasis on putting consumer-oriented topics on the cover, telling readers where to find the best doctor or hamburger.
In recent decades, there has been increased emphasis on the protection of the aquatic environment.
There has been increased emphasis globally on nurses' involvement in health policy and systems development.
As such, there has been increased emphasis on maximizing the utility of more advanced data analysis methods to bridge the gap between the basic research and clinical practice.
There has been increased emphasis recently for establishing large-scale clinical trials to study perinatal and neonatal health interventions in less developed countries.
There has been increasing emphasis placed on digital first broadcasting since the rise of Netflix and other streaming services.
However, over time there has been increasing emphasis on so-called 'integrated projects'.
There has been increasing emphasis in fMRI research on the examination of how regions covary in a distributed neural network.
While there has been increasing emphasis on both technical and non-technical skills within the surgical domain, and development of multiple evaluation techniques, these skills are largely trained and assessed in isolation (Dedy, Bonrath, Zevin, & Grantcharov, 2013).
Over the last decades there has been increasing emphasis on respecting patient autonomy.
