Sure. I'm unsure why you're taking issue with the term when it's commonly used. I used the term migrant crisis which relates directly to the influx through South East Europe and across the Mediterranean, generally from the Middle East.

https://en.wikipedia.org/wiki/European_migrant_crisis

You then used the term 'immigrants' which made me believe you were speaking in the general sense rather than refugees as to why I made the distinction between the economic impact of both.

'Management' of refugees by definition isn't an investment but a donation and I don't particularly hold the notion that a country should suffer under austerity only to 'donate' funds to something that will never offer any return and is a net drain on society, who at some point will (or should) be returning to their country when safe as to why I support help through aid to countries close in proximity which can offer far more to far more people than spending it on transporting and supporting a small amount.