Is economics inrelevant in absence of scarcity?

Answer 1

Scarcity is a relative aspect. Consider there is 'abundant' X and also 'abundant' Y but the consumer has to decide how much Income (Income may also be considered abundant) to allocate between X and Y (Now though both abundant they may be relatively scarce i.e. when compared to each other), and this is done from his perception of utility which is an economic concept. So economics is also the study of optimal allocation, in scarce or abundant scenario.