Liquidity preference refers to the desire and preference of people to maintain part of their assets in the form of money. It is a psychological motivation to cope with daily expenses, unexpected expenses and speculative profits at the right time. According to the above definitions, Which of the following are not mobile preferences:. ['In order to buy a residential commercial house, Xiao Wang began to save money for a house purchase after he joined the job.', 'The stock market has been bad recently, and many investors have withdrawn from the stock market.', 'Banks have repeatedly cut interest rates, and the national savings rate remains high.', 'Old Liu usually spends money sparingly is afraid of the shortfall after being laid off suddenly.']