
Some mandarin-related data from Paris
So, we extend our previous study in London to consider indeed.fr and Paris. The table below shows results tabulated as previously for London

Jobs in Paris involving foreign languages
So, there were 1364 postings mentioning ‘polonais’ with a total estimated yearly salary of 29.35 million Euro and an average salary of 29,185 Euro. ‘Overall here’ refers to the 12 language names listed while ‘Overall jobs’ is all the postings on the site.
We can also express this in terms of percentages referred to ‘overall jobs’, as below:

Data from Paris in percentage terms
Here, we see that 0.52% of the overall job postings mentioned ‘polonais’, and they had an average salary that was 13.1% higher than for the ‘Overall jobs’. 35% of postings appeared to mention a foreign language and for 30% that language was English. We can compare this with data from London in the same format:

Data from London in percentage terms
There is a great difference in the worth of Polish (probably genuine) and of Turkish–probably due to small numbers, and you get very different results with [la langue] turque. Italian and Japanese subtract value in both capitals, while Dutch, Spanish and Portuguese add value in the two of them.
Overall, the language-related jobs have a salary premium of 4.6% in Paris as against 17.3% in London.
The clearest conclusions are:
i) there are far more jobs possibly requiring a foreign language (English!) in Paris than in London;
ii) there seems to be a far higher premium for foreign languages in London than in Paris.