margin calls Archives - Economics.MBA | Micro, Macro, Models and Economics Theories

Learn margin trading and short selling with clear formulas, risk explanations, and step-by-step solutions to investment exercises.

Margin Trading and Short Selling: Solved Exercises

Margin trading and short selling change how investment gains, losses, and account equity work. A stock can fall only modestly while a leveraged investor loses a large share of their…

Ramon Silva October 1, 2026

Learn long and short positions, short selling, margin calls, portfolio allocation, and practical examples with clear calculations.

Finance

Long and Short Positions: A Complete Investment Guide

Long and short positions describe two different ways to gain exposure to an investment. A long position usually benefits when its price rises, while a short position usually benefits when…

Ramon Silva September 30, 2026