Length for ranking, is it keyword dependant ?

[seoanalytics]

Is the time it takes to rank keyword dependant ? in other word does it take more time for a page to rank on a keyword that has 5000 request a month than for a page to rank on a keyword that has 50 requests a month ?

[Moreleads]

Hi Seoanalytics,

Is there a correlation or causation between the search popularity of a keyword an the difficulty to rank?  I would think the primal reason for dificulty in ranking is a high comercial value of the Keyword that could be because a lot of people search it or because it has high values + margins.  So not just the popularity of the search term is key and a keyword could be highly popular but have no comercial value.

e.g. for "tying shoes" (i know not very exciting example) i find 6.600 monthly searches in US and moz ranking diifficulty 50.  and for "ty slippers" 390 monthly searches moz ranking difficulty 65, whereas you would excpect the other way around if there was causation.

so i would say there is correlation but no causability.  Just my 50 cents