Why is it so difficult to get a job in Ireland

I  moved to Ireland around 3 months ago and have found it really difficult to find work. As someone who has previously owned his own business, is hard working and worked 7 days a week I find the situation here totally frustrating  and demoralising. Since arriving here I must have applied for at least 60 jobs which has resulted in just 2 interviews for positions which frankly I am over qualified to do. Not a great conversion rate I know given the experience and qualifications that I have. Most frustrating of all though is the countless number of applications that are made to which you never get the courtesy of a reply. When you consider the amount of time and effort and expense put in to send in CV's and applications  I don't think this is fair. Surely it is not too much to  ask to get some sort of acknowlegement. So often you are just left wondering and I think is time to name and shame these companies and organisations small and large who don't seem to care, and I'm prepared to start the ball rolling. I have a long list I'm sure there are thousands of others out there with similar experiences.