'decrease the willingness' is correct and usable in written English.
You can use it when you are talking about reducing enthusiasm or commitment about something. For example, "The financial burden of taking on a new project seemed to decrease the team's willingness to move forward."
Although the respondents broadly agreed that the Arizona law would result in racial profiling, overburden local and state law enforcement agencies and decrease the willingness of illegal immigrants to report crimes for fear of deportation, large majorities said it would reduce the number of illegal immigrants in the state, deter illegal border crossings and, to a lesser extent, reduce crime.
Restrictive immigration policies could decrease the willingness to migrate illegally, but they could also increase it.
In other words, health care wage increases in source countries – unless very substantial – will not decrease the willingness of health care professionals to migrate out of these developing countries.
Initially, the increasing distance (in both time and space) between a residence and the nearest public transport stop decreases the willingness of seniors to use public transport.
Furthermore, self-stigmatization might well be an overlooked finding however decreasing the willingness to seek psychiatric help [ 8].
Requests to work longer hours, different shifts, with reduced breaks, and/or at a different location to the usual place of work also decreased the willingness and ability of people to work during an emergency (46).
Moreover, the study protocol was extensive and required families' commitment for many years which might have decreased the parents' willingness.
Throughout the whole sample, including urban and rural dwellers, the presence of musculoskeletal disorders and better nutritional status decreased the declared willingness to use the care provided by nurses (Table 8).
Referring back to Table 3, we thus conclude that an extra year of education decreases the non-willingness to naturalise and increases the likelihood of recent naturalisations.
If not adequately acted upon, not only shall non – compliance to biomedical treatment regimens for HIV increase with accompanying increase in HIV resistant strains, public health risks experiencing a loss in public trust in health systems and an accompanying decrease in the willingness to use HIV prevention/treatment services and participate in future research.
Would knowing you had longer to live decrease your willingness to make the most of life?
