New Classical Approach Basics

The New Classical approach is a significant school of thought in macroeconomics. It emerged as a critique of earlier macroeconomic models and emphasized microeconomic foundations, rational expectations, and the role of policy. Let's analyze the statements provided to understand its key characteristics.

R.E. Lucas Jr. as Protagonist

Statement A claims that R.E. Lucas Jr. was the main protagonist. This is true. Robert E. Lucas Jr. is widely considered the most influential figure in developing and popularizing the New Classical school of thought. His work, particularly on the 'Lucas critique', fundamentally challenged existing macroeconomic models.

Adaptive Expectations vs Rational Expectations

Statement B suggests the approach is based on adaptive expectations. This statement is false. A cornerstone of the New Classical model is the rational expectations hypothesis. This hypothesis posits that economic agents use all available information efficiently to form expectations about the future, rather than relying solely on past data as in adaptive expectations.

New Classical Development Era

Statement C places the development of the New Classical approach in the 1950s. This is incorrect. While its roots trace back earlier, the New Classical school gained prominence and coalesced as a distinct movement primarily during the 1970s.

Wage and Price Flexibility Tenet

Statement D asserts complete wage and price flexibility. This is true. A key assumption within New Classical models is that wages and prices are fully flexible and adjust rapidly to changes in supply and demand. This leads to the conclusion that markets clear continuously, and unemployment, if it exists, is voluntary or frictional.

Price Difference as Random Error

Statement E states that the difference between actual and expected price is a random error. This is true, reflecting the rational expectations assumption. Under rational expectations, individuals cannot systematically predict future price level changes. Therefore, any deviation of the actual price level from the expected price level is considered unpredictable or a random error, often resulting from unanticipated shocks or policy changes.

Summary of New Classical Statements

Based on the analysis of each statement:

• Statement A is true.
• Statement B is false.
• Statement C is false.
• Statement D is true.
• Statement E is true.

Therefore, the true statements about the New Classical approach are A, D, and E.