Economics MBA | Microeconomics, Macroeconomics & Models

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 Cristian September 30, 2026

Finance

Brokerage and Margin Accounts: A Practical Guide

Brokerage and margin accounts give investors access to securities, but they create different obligations. A cash account requires you to pay for purchases in full. A margin account lets you…

Ramon Cristian September 29, 2026

Learn the investment process, risk tolerance, asset allocation, and step-by-step solutions to the chapter's exercises.

Finance

The Investment Process: Guide and Solved Exercises

The investment process starts with a question that comes before choosing a stock: What job must your money do? A portfolio for next year's tuition needs a different plan from…

Ramon Silva September 28, 2026

Finance

Investment Risk and Return: Guide and Solved Exercises

Investment risk and return belong in the same conversation. A 12% gain sounds attractive, but does it include dividends? Did it happen in one year or over several? How much…

Ramon Silva September 27, 2026

Learn to calculate investment returns, compare average and IRR results, and understand how risk, fees, and inflation affect growth.

Finance

How to Calculate Investment Returns and Risk

How to calculate investment returns sounds simple until you add money midway through an investment, compare several years, or account for inflation. A portfolio can report a positive average return…

Ramon Silva September 26, 2026

Understand investment risk and return, volatility, average returns, inflation, and the math behind smarter comparisons.

Finance

Investment Risk and Return: A Complete Guide

Investment Risk and Return: The Math Behind Your Money Investment risk and return belong in the same conversation. A stock might deliver an impressive long-run average, yet a sharp loss…

Ramon Silva September 25, 2026

Sociology

Business & Society BADM 605 – Modules 1-2 – On Society, Human Nature, Social Norms, and Ethics

Let's recap the content of modules 1 and 2 and I'll add some insights that I found interesting about the content of these weeks about Society, Human Nature, Social Norms,…

Ramon Silva May 20, 2025

Finance