पैशाची कार्ये या संदर्भात पुढीलपैकी कोणती / कोणते विधाने/विधान चूकीचे आहे/आहेत ?
a. विनिमय माध्यम हे पैशाचे दुय्यम कार्य आहे.
b. पॉल इन्झींगच्या मते पैशाची दुय्यम स्वरुपाची कार्ये ही गतिशील कार्ये आहेत.

The correct answer is Option A (a and b).

Key Points:
• Functions of Money: The functions of money are traditionally classified into Primary (fundamental), Secondary (derivative), and Contingent functions.
• Analysis of Statement 'a': The Medium of Exchange and Measure of Value (unit of account) are the Primary functions of money, not secondary. Secondary functions include Standard of deferred payment, Store of value, and Transfer of value. Hence, statement 'a' is blatantly false.
• Paul Einzig's Classification (Statement 'b'): Economist Paul Einzig classified the functions of money differently, dividing them into Static and Dynamic functions.
• *Static functions* are technical functions that make the economy run smoothly (which correspond to both traditional primary and secondary functions like medium of exchange and store of value).
• *Dynamic functions* refer to money's active role in influencing the price level, interest rates, output, and distribution of income in the economy. Therefore, secondary functions are generally static, not dynamic. Hence, statement 'b' is also false.
• Conclusion: Both statements 'a' and 'b' are false.
• Key Takeaway: Medium of exchange is a PRIMARY function. Paul Einzig's 'Dynamic' functions refer to money's impact on prices and output, not the standard secondary functions.