Hi, The purpose of a labor union is to improve the working condition (job security/ the job's security), and pay of its members. To my knowledge, we should use the first one because "job security" and "working condition" are grammatically equivalent, Right? Your prompt reply it will be highly appreciated Yes, say 'job security'.
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yadoo86The purpose of a laborunion is to improve the working condition (job security/ the job's security), and pay of its members.You mention three different goals of a union. If that is your intention then the sentence should be: