Wealth Effect Drives Dual Increase in Saving and Spending

Steps:

• Identify factors influencing consumer behavior in high-income economies, focusing on those boosting both saving and spending.
• Recall the wealth effect: higher wealth raises permanent income, encouraging more consumption and precautionary saving.
• Evaluate each option against this: does it simultaneously increase disposable resources for both?
• Select the option aligning with economic theory on income and wealth impacts.

Why B is correct:

• An increase in wealth triggers the wealth effect, where consumers feel richer and raise both current spending (via higher consumption function C = c0 + c(Y + ΔW)) and saving to protect future lifestyle.

Why the others are wrong:

• A: Higher interest rates boost saving incentives but reduce current spending due to substitution toward future consumption.
• C: Expectations of falling prices delay spending (postponed purchases) while possibly increasing saving, but not both more.
• D: Faster inflation erodes real wages, cutting purchasing power and typically reducing both saving and spending.

Final answer: B