Notes, summaries, assignments, exams, and exercises for Economics for University

Decomposition Framework

The Draghis framework breaks down a country’s income into several components related to production, labor markets, and demographics.

Objective

Identify sources of income differences across countries and determine whether low GDP per capita is due to weak productivity, unemployment, low labor participation, or adverse demographic trends. It can effectively detect structural bottlenecks.

Case Study: Spain

Spain faces low productivity and persistent labor market problems, including high unemployment and low activity rates, compounded by population aging. Consequently, the model justifies the need for labor market, education, and productivity-enhancing reforms.

Real Convergence

Poorer countries tend to grow faster than richer...

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...

Understanding Political Economy

Political economy applies economic principles to the analysis of political decision-making.

Public Goods & Direct Democracy

Economists have studied several methods for choosing levels of public goods in a direct democracy.

Lindahl Pricing & Preference Revelation

Lindahl pricing results in a unanimous decision to provide an efficient quantity of public goods, but relies on honest revelation of preferences.

Majority Voting Challenges

Majority voting may lead to inconsistent decisions regarding public goods if some people's preferences are not single-peaked.

Logrolling: Trading Votes

Logrolling allows voters to express the intensity of their preferences by trading votes. However, minority gains may come at the expense...

Steady State in the Solow Growth Model

In the Solow growth model, the steady state refers to a long-run equilibrium where key economic variables (such as capital per worker, output per worker, and consumption per worker) do not change over time. This occurs when the economy reaches a point where the capital stock per worker, k, is constant because investment (savings) equals depreciation, and no additional net investment is happening.

The IS Relation and Goods Market Equilibrium

The IS relation (or IS curve) represents the relationship between the interest rate (r) and the level of output (Y) that ensures equilibrium in the goods market. It reflects the combinations of interest rates and output levels at which the total demand for goods equals...

Defining Innovation

Innovation is the process of taking a business idea and reducing its market, financial, and operational risks.

The 10 Types of Innovation

• Configuration: Profit model, network, structure, process.
• Offering: Product performance, product system.
• Experience: Service, channel, brand, customer engagement.

Revenue Streams and Examples

Revenue streams represent the different categories of products a company sells. Example: Lamborghini sells cars, tractors, and merchandise.

Stages of Innovation

1. Technology pull
2. Market pull
3. The whole company
4. Along the value chain
5. Open innovation
6. Innovation ecosystem
7. Geopolitics

Key Business Concepts

• Topline: Total revenue generated from various streams.
• Incremental Innovation: Existing products with slight improvements

Human Resource Management in Small Businesses

The Small Business Administration (SBA) defines a small business as one that is independently owned and operated.

Country Culture in Global Business

A country's culture is the set of values, symbols, beliefs, languages, and norms that guide human behavior within that country.

The Strategic Planning Process

Corporate Mission

A company's mission is its continuing purpose or reason for being. The corporate mission is the sum total of the organization’s ongoing purpose.

Objective Setting

Objectives are the desired end results of any activity. Objectives should have four basic characteristics:

1. They should be expressed in writing.
2. They should be measurable.
3. They should be specific as to time.
4. They should be challenging

Convertible Securities: An Overview

Convertible securities are financial instruments that offer investors the flexibility to convert them into a different form or type of security, typically common stock. These securities provide investors with the potential for both fixed income and equity returns.

Types of Convertible Securities

• Convertible Bonds: Bonds that can be exchanged for a predetermined number of shares of common stock.
• Convertible Preferred Stock: Preferred stock that can be converted into common stock.

Key Features of Convertible Securities

• Conversion Ratio: The number of shares of common stock an investor will receive if they exchange their convertible security.
• Conversion Price: The price at which the convertible security can be converted

Policy as Institutional Output

• Governments bestow legitimacy, universality, and mandatory policies.
• The characteristics of government organizations and institutions influence the types of public policies embraced by officials.
• Certain issues, problems, and interest groups have more weight than others in government.

Process Model

• It conceives the political process as a series of political activities: identification of the problem, establishment of the agenda, formulation, legitimation, implementation, and evaluation.

Group Theory Model

• Policies are the efforts of groups to influence and modify public policies.

Theory of the Elite

• Public policy reflects the interests and values of the elite rather than the demands of the people.
• Change in public policy

1.The interest rate on a One-year bank deposit in Brazil is 6%.  In the US it is 2.2%.  The Exchange rate is 3.9 reals/$.  If an American investor deposited $1,000 in a Brazilian bank for one-year, then Brought the funds back to US, what would his/her rate of return be if (a) the real appreciates to 4.1/$, (b) the real depreciates to 3.5/$, (c) the real/$ Exchange rate doesn’t change? 

1000*3.9 = 3900*(1+0.06)= 4134

(a)If real appreciate to 4.1 Real/dollar

he gets = $4134/4.1 = $1008.29

(b) depreciation to 3.5 Real/dollar

He gets = 4134/3.5 =$ 1181.14

(c) at the constant rate:

He gets = 4134/3.9 = $1060

2.What does it mean to say The macro-economy is in internal balance?  In external balance?

By internal balance it means that the unemployment...

Limitations of GDP Calculation

Gross Domestic Product (GDP) calculations face several inherent limitations:

• Excludes non-market activities (e.g., domestic activities, housewives' labor, subsistence production, black market).
• Does not include depreciation of capital.
• Some market activities are included as an estimation instead of their real contribution to production (e.g., health services, police).
• Includes all production independent of its use, utility, or improvement of social welfare (i.e., defense spending).
• Does not account for negative effects like the loss of national patrimony or wealth (e.g., loss of fertile land or forests).

Free Float Exchange Rate System Analysis

A free float exchange rate system offers distinct advantages and disadvantages:...