Statement: Market trends are changing continuously and with increasing competitiveness, the consumer's demands with respect to the prices and quality are gradually increasing. Assumptions:
I.              The consumers did not care for the prices and quality earlier.
II.            Market competitiveness is not favourable for the consumers.

The statement talks of 'increasing demands' of consumers. It does not imply that consumers were indifferent to price and quality earlier. So, I is not implicit. Besides, the statement mentions I that increasing competitiveness has made available to consumers a wide variety of options which has led them to comparing things and choosing the one which best suits their requirements and budget. They are thus getting better 'value for their money'. So, II is also not implicit.