Notes, summaries, assignments, exams, and problems for Economy

TDS and TCS: Tax Collection Mechanisms

TDS (Tax Deducted at Source) and TCS (Tax Collected at Source) are methods within the Indian tax system designed to collect tax at the point of a transaction. This approach assists the government in maintaining a consistent revenue flow and minimizing tax evasion. The primary distinction lies in who collects the tax and the nature of the transaction involved.

Tax Deducted at Source (TDS)

With TDS, the payer deducts a specified percentage of tax before paying the recipient and deposits this amount with the government on the recipient's behalf. This deduction is treated as advance tax for the recipient, who can claim credit for it when filing their income tax return.

TDS applies to various income payments, such... Continue reading "Indian Tax Collection: TDS, TCS, and Income Tax Basics" »

Time Value of Money and Interest Formulas

Time Value of Money (TVM): Money received sooner is more valuable than money received later because of the returns you can earn by investing it.

Compound Interest Formulas

• Standard Compounding: FV = PV(1+k)ⁿ (Use if asked to compound for any period > 1 day).
• Continuous Compounding: FV = PV x e^{APR x t} (Use if compounding is continuous, < 1 day, where t = years).

In these formulas, k = APR/m and n = t x m. The Future Value Interest Factor is (1+k)ⁿ, while the Present Value factor is its inverse.

The Annual Percentage Rate (APR) is also known as the Quoted Rate or Nominal Interest Rate. It should not be used directly for TVM; it must be converted to an Effective Rate based on the compounding frequency... Continue reading "Financial Valuation Principles and Market Regulations" »

General Equilibrium and Welfare Economics

Efficiency and Equilibrium Concepts

• Pareto efficient: Any reallocation harms at least one person.
• Partial equilibrium analysis: One market in isolation.
• General equilibrium analysis: How equilibrium is determined in all markets simultaneously.
• Contract curve: The set of all Pareto-efficient bundles.
• First Welfare Theorem: The competitive equilibrium is efficient.
• Second Welfare Theorem: Any efficient allocation can be achieved by competition.

Mutually Beneficial Trades and Production

• Conditions for mutually beneficial trades:
  1. Utility maximization
  2. Usual-shaped indifference curves
  3. No interdependence
• Equilibrium conditions:
  1. Two indifference curves are tangent
  2. MRS_a = MRS_b
  3. No further mutually beneficial trade
  4. Allocation

The U.S. Opioid Crisis: Corporate Negligence and Accountability

This case study examines the origins and escalation of the opioid crisis in the United States, driven by the unethical practices of pharmaceutical companies, consulting firms, and pharmacy chains. By prioritizing profits over public health, these entities fueled a national epidemic characterized by widespread addiction, increased crime, and hundreds of thousands of preventable deaths. This analysis highlights how corporate misconduct can trigger massive public health disasters and explores the mechanisms for holding these organizations accountable.

The Key Players and Their Roles

• Purdue Pharma & the Sackler Family: Developed OxyContin and aggressively incentivized doctors to overprescribe

OPRE 3310 Exam 1 Practice Questions

1) A supply chain with a distributor has more product handling than one without a distributor.

▢ True ▢ False

2) Lead time is a way to measure the availability of inventory.

▢ True ▢ False

3) Goods-producing organizations are not involved in service activities.

▢ True ▢ False

4) Service operations require additional inventory because of the unpredictability of consumer demand.

▢ True ▢ False

5) Prior to the Industrial Revolution, goods were produced primarily by craftsmen or their apprentices using custom-made parts.

▢ True ▢ False

6) Services can be stored and are not provided “on demand.”

▢ True ▢ False

7) Productivity is defined as the ratio of output to input.

▢ True ▢ False

8) As long... Continue reading "Operations Management and Supply Chain Exam Prep" »

Investing in Mutual Funds

The following patterns of investing can be seen in Mutual Funds:

Regular Plans vs. Direct Plans

As in any retail business, the Asset Management Company (AMC) also appoints distributors who act as intermediaries between the AMC and the retail investors. As an incentive to garner funds for their schemes, AMCs usually pay their mutual fund distributors a commission and reimburse distribution expenses.

Lumpsum vs. SIP vs. STP

If an investor has a consolidated amount—for example, a Diwali bonus or savings accumulated over a period of time—and now wants to invest in mutual funds in one go, such an investment is called a Lumpsum investment.

Over a 9-month period from January to September, an investor may invest a total of Rs.... Continue reading "Mutual Funds and Alternative Investment Strategies" »

E-commerce: Buying and Selling Online

Like many people, I regularly buy things online, mostly books, music, and airline tickets. Many online retailers offer good rates or discounts. Occasionally, I also buy things on internet auction sites such as eBay, where people sell items to the highest bidder.

The Four Main Steps to Buying Online

There are four main steps to buying online:

1. First, you enter a site dedicated to e-commerce and browse their products.
2. Then, you put the items you want to buy into a virtual shopping cart, a program that lets you select the products and purchase with a credit card.
3. Third, you enter your personal data – you may have to log in with a username and a password if you have an account with the site.
4. Finally, you confirm

Canadian Tax Calculations: AP 8-15

Here are the solutions to the questions presented in the images, based on the provisions of the Indian Income Tax Act, 1961.
Q. 2. Income Tax is charged on the Previous year Income. Do you agree? If not Give exceptions.
Agreement: Yes, I agree. The fundamental principle is that income earned in the Previous Year (P.Y.) is taxed in the next financial year, known as the Assessment Year (A.Y.).
Exceptions to the General Rule (P.Y. Income Taxed in P.Y.)
In certain specific cases, income is assessed and taxed in the same P.Y. Itself, primarily to ensure tax recovery:
 * Non-Resident Shipping Business (Sec. 172): To tax freight income before the ship leaves India.
 * Persons Leaving India (Sec. 174): Individuals leaving India with no intention of returning.... Continue reading ""tax relationship" taxable event taxable person" »

Futures Markets: Margins and Hedging

The Role of Margin Payments

Margin payments exist to eliminate counterparty credit risk in futures markets. Futures contracts are marked-to-market daily and losses are settled through variation margin, while initial margin acts as collateral. This system ensures that neither party can default at maturity.

Speculation vs. Hedging

Futures can be used for speculation by taking long or short positions to profit from expected price movements. They can also be used for hedging to offset the price risk of an existing exposure. For example, an equity portfolio can be hedged by shorting stock index futures. If the market falls, portfolio losses are offset by gains on futures, and if the market rises, portfolio gains... Continue reading "Financial Risk Management: Futures, VaR, ABS, and Hedging" »