The reason for attrition is simple. If companies do not provide the services they promised or improve the work atmosphere employees will leave soon. They also need job security which companies fail to provide to them. The employees these days need security as they have their own set of liabilities to take care of. The other question about investing hugely in recruitment is they too are not getting modern ways of hiring candidates for their vacant positions. There is this company named ElinkAus which is based in Australia. They offer unique recruitment solutions to companies and companies have an option to select the best of the best recruitment agencies or agents for high quality scrutinized resumes. This company not helps save money but also get best candidates without wasting time.
http://www.elinkaus.com/