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Messages - tokiyeasir

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3
Power System and Renewable Energy / Re: Principle of Alternators
« on: Yesterday at 01:18:23 PM »
Thanks for sharing......

4
Informative Post. Thanks

5
Informative Post. Thanks

6
Internship / Credit Risk Management Of United Commercial Bank Limited
« on: November 15, 2018, 01:51:33 PM »
Md. Toki Yeasir
ID No. # 133-11-3407
Batch: 36th
BBA Program
Department of Business Administration
Faculty of business & Economics
Daffodil International University

7
Internship / Evaluation of the Activities of DRE
« on: November 15, 2018, 01:48:01 PM »
Submitted by

Md. Toki Yeasir
ID No. # 172-14-2409
Accounting, 47th Batch
MBA Program
Department of Business Administration
Faculty of Business & Entrepreneurship
Daffodil International University

8
Internship / Evaluation of the Activities of DRE
« on: November 15, 2018, 01:44:44 PM »
Submitted by

Md. Toki Yeasir
ID No. # 172-14-2409
Accounting, 47th Batch
MBA Program
Department of Business Administration
Faculty of Business & Entrepreneurship
Daffodil International University

9
Microeconomics / Basic concept of Micro-Economics
« on: November 15, 2018, 01:39:48 PM »
Microeconomics
Microeconomics (from Greek prefix mikro- meaning "small" + economics) is a branch of economics that studies the behavior of individuals and firms in making decisions regarding the allocation of scarce resources and the interactions among these individuals and firms.[1][2][3]

One goal of microeconomics is to analyze the market mechanisms that establish relative prices among goods and services and allocate limited resources among alternative uses. Microeconomics shows conditions under which free markets lead to desirable allocations. It also analyzes market failure, where markets fail to produce efficient results.

Microeconomics stands in contrast to macroeconomics, which involves "the sum total of economic activity, dealing with the issues of growth, inflation, and unemployment and with national policies relating to these issues".[2] Microeconomics also deals with the effects of economic policies (such as changing taxation levels) on the aforementioned aspects of the economy.[4] Particularly in the wake of the Lucas critique, much of modern macroeconomic theory has been built upon microfoundations—i.e. based upon basic assumptions about micro-level behavior.


Contents
1   Assumptions and definitions
2   Basic microeconomic concepts
2.1   Demand, supply, and equilibrium
2.2   Measurement of elasticities
2.3   Consumer demand theory
2.4   Theory of production
2.5   Costs of production
2.6   Opportunity cost
2.7   Market structure
2.8   Perfect competition
2.9   Imperfect competition
2.9.1   Monopolistic competition
2.9.2   Monopoly
2.9.3   Oligopoly
2.9.4   Monopsony
2.9.5   Oligopsony
2.10   Game theory
2.11   Labor economics
2.12   Welfare economics
2.13   Economics of information
3   Applied
4   History
5   See also
6   References
7   Further reading
8   External links

Assumptions and definitions
Microeconomic theory typically begins with the study of a single rational and utility maximizing individual. To economists, rationality means an individual possesses stable preferences that are both complete and transitive.

The technical assumption that preference relations are continuous is needed to ensure the existence of a utility function. Although microeconomic theory can continue without this assumption, it would make comparative statics impossible since there is no guarantee that the resulting utility function would be differentiable.

Microeconomic theory progresses by defining a competitive budget set which is a subset of the consumption set. It is at this point that economists make The technical assumption that preferences are locally non-satiated. Without the assumption of LNS (local non-satiation) there is no guarantee that a rational individual would maximize utility. With the necessary tools and assumptions in place the utility maximization problem (UMP) is developed.

The utility maximization problem is the heart of consumer theory. The utility maximization problem attempts to explain the action axiom by imposing rationality axioms on consumer preferences and then mathematically modeling and analyzing the consequences. The utility maximization problem serves not only as the mathematical foundation of consumer theory but as a metaphysical explanation of it as well. That is, the utility maximization problem is used by economists to not only explain what or how individuals make choices but why individuals make choices as well.

The utility maximization problem is a constrained optimization problem in which an individual seeks to maximize utility subject to a budget constraint. Economists use the extreme value theorem to guarantee that a solution to the utility maximization problem exists. That is, since the budget constraint is both bounded and closed, a solution to the utility maximization problem exists. Economists call the solution to the utility maximization problem a Walrasian demand function or correspondence.

The utility maximization problem has so far been developed by taking consumer tastes (i.e. consumer utility) as the primitive. However, an alternative way to develop microeconomic theory is by taking consumer choice as the primitive. This model of microeconomic theory is referred to as revealed preference theory.


The supply and demand model describes how prices vary as a result of a balance between product availability at each price (supply) and the desires of those with purchasing power at each price (demand). The graph depicts a right-shift in demand from D1 to D2 along with the consequent increase in price and quantity required to reach a new market-clearing equilibrium point on the supply curve (S).
The theory of supply and demand usually assumes that markets are perfectly competitive. This implies that there are many buyers and sellers in the market and none of them have the capacity to significantly influence prices of goods and services. In many real-life transactions, the assumption fails because some individual buyers or sellers have the ability to influence prices. Quite often, a sophisticated analysis is required to understand the demand-supply equation of a good model. However, the theory works well in situations meeting these assumptions.

Mainstream economics does not assume a priori that markets are preferable to other forms of social organization. In fact, much analysis is devoted to cases where market failures lead to resource allocation that is suboptimal and creates deadweight loss. A classic example of suboptimal resource allocation is that of a public good. In such cases, economists may attempt to find policies that avoid waste, either directly by government control, indirectly by regulation that induces market participants to act in a manner consistent with optimal welfare, or by creating "missing markets" to enable efficient trading where none had previously existed.

This is studied in the field of collective action and public choice theory. "Optimal welfare" usually takes on a Paretian norm, which is a mathematical application of the Kaldor–Hicks method. This can diverge from the Utilitarian goal of maximizing utility because it does not consider the distribution of goods between people. Market failure in positive economics (microeconomics) is limited in implications without mixing the belief of the economist and their theory.

The demand for various commodities by individuals is generally thought of as the outcome of a utility-maximizing process, with each individual trying to maximize their own utility under a budget constraint and a given consumption set.

Demand, supply, and equilibrium
Supply and demand is an economic model of price determination in a perfectly competitive market. It concludes that in a perfectly competitive market with no externalities, per unit taxes, or price controls, the unit price for a particular good is the price at which the quantity demanded by consumers equals the quantity supplied by producers. This price results in a stable economic equilibrium.

Measurement of elasticities
Elasticity is the measurement of how responsive an economic variable is to a change in another variable. Elasticity can be quantified as the ratio of the change in one variable to the change in another variable, when the later variable has a causal influence on the former. It is a tool for measuring the responsiveness of a variable, or of the function that determines it, to changes in causative variables in unitless ways. Frequently used elasticities include price elasticity of demand, price elasticity of supply, income elasticity of demand, elasticity of substitution or constant elasticity of substitution between factors of production and elasticity of intertemporal substitution.

Consumer demand theory
Consumer demand theory relates preferences for the consumption of both goods and services to the consumption expenditures; ultimately, this relationship between preferences and consumption expenditures is used to relate preferences to consumer demand curves. The link between personal preferences, consumption and the demand curve is one of the most closely studied relations in economics. It is a way of analyzing how consumers may achieve equilibrium between preferences and expenditures by maximizing utility subject to consumer budget constraints.

Theory of production
Production theory is the study of production, or the economic process of converting inputs into outputs. Production uses resources to create a good or service that is suitable for use, gift-giving in a gift economy, or exchange in a market economy. This can include manufacturing, storing, shipping, and packaging. Some economists define production broadly as all economic activity other than consumption. They see every commercial activity other than the final purchase as some form of production.

Costs of production
The cost-of-production theory of value states that the price of an object or condition is determined by the sum of the cost of the resources that went into making it. The cost can comprise any of the factors of production: labour, capital, land,entrepreneur. Technology can be viewed either as a form of fixed capital (e.g. plant) or circulating capital (e.g. intermediate goods).

Opportunity cost
The economic idea of opportunity cost is closely related to the idea of time constraints. You can do only one thing at a time, which means that, inevitably, you’re always giving up other things.

The opportunity cost of any activity is the value of the next-best alternative thing you may have done instead. Opportunity cost depends only on the value of the next-best alternative. It doesn’t matter whether you have 5 alternatives or 5,000.

Opportunity costs can tell you when not to do something as well as when to do something. For example, you may like waffles, but you like chocolate even more. If someone offers you only waffles, you’re going to take it. But if you’re offered waffles or chocolate, you’re going to take the chocolate. The opportunity cost of eating waffles is sacrificing the chance to eat chocolate. Because the cost of not eating the chocolate is higher than the benefits of eating the waffles, it makes no sense to choose waffles. Of course, if you choose chocolate, you’re still faced with the opportunity cost of giving up having waffles. But you’re willing to do that because the waffle's opportunity cost is lower than the benefits of the chocolate. Opportunity costs are unavoidable constraints on behaviour because you have to decide what’s best and give up the next-best alternative.

Market structure
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The market structure can have several types of interacting market systems. Different forms of markets are a feature of capitalism and market socialism, with advocates of state socialism often criticizing markets and aiming to substitute or replace markets with varying degrees of government-directed economic planning.

Competition acts as a regulatory mechanism for market systems, with government providing regulations where the market cannot be expected to regulate itself. One example of this is with regards to building codes, which if absent in a purely competition regulated market system, might result in several horrific injuries or deaths to be required before companies would begin improving structural safety, as consumers may at first not be as concerned or aware of safety issues to begin putting pressure on companies to provide them, and companies would be motivated not to provide proper safety features due to how it would cut into their profits.

Some examples of markets:

commodity markets
insurance markets
bond markets
energy markets
flea markets
debt markets
stock markets
online auctions
media exchange markets
real-estate market.
Perfect competition

Perfect competition is a situation in which numerous small firms producing identical products compete against each other in a given industry. Perfect competition leads to firms producing the socially optimal output level at the minimum possible cost per unit. Firms in perfect competition are "price takers" (they do not have enough market power to profitably increase the price of their goods or services). A good example would be that of digital marketplaces, such as eBay, on which many different sellers sell similar products to many different buyers.

Imperfect competition
In economic theory, imperfect competition is a type of market structure showing some but not all features of competitive markets.

Monopolistic competition
Monopolistic competition is a situation in which many firms with slightly different products compete. Production costs are above what may be achieved by perfectly competitive firms, but society benefits from the product differentiation. Examples of industries with market structures similar to monopolistic competition include restaurants, cereal, clothing, shoes, and service industries in large cities.

Monopoly
A monopoly is a market structure in which a market or industry is dominated by a single supplier of a particular good or service. Because monopolies have no competition they tend to sell goods and services at a higher price and produce below the socially optimal output level. Although not all monopolies are a bad thing, especially in industries where multiple firms would result in more problems than benefits (i.e. natural monopolies).[5][citation needed]

Natural monopoly: A monopoly in an industry where one producer can produce output at a lower cost than many small producers.
Oligopoly
An oligopoly is a market structure in which a market or industry is dominated by a small number of firms (oligopolists). Oligopolies can create the incentive for firms to engage in collusion and form cartels that reduce competition leading to higher prices for consumers and less overall market output.[6] Alternatively, oligopolies can be fiercely competitive and engage in flamboyant advertising campaigns.[citation needed]

Duopoly: A special case of an oligopoly, with only two firms. Game theory can elucidate behavior in duopolies and oligopolies.[7]
Monopsony
A monopsony is a market where there is only one buyer and many sellers.

Oligopsony
An oligopsony is a market where there are a few buyers and many sellers.

Game theory
Game theory is a major method used in mathematical economics and business for modeling competing behaviors of interacting agents. The term "game" here implies the study of any strategic interaction between people. Applications include a wide array of economic phenomena and approaches, such as auctions, bargaining, mergers & acquisitions pricing, fair division, duopolies, oligopolies, social network formation, agent-based computational economics, general equilibrium, mechanism design, and voting systems, and across such broad areas as experimental economics, behavioral economics, information economics, industrial organization, and political economy.

Labor economics
Labor economics seeks to understand the functioning and dynamics of the markets for wage labor. Labor markets function through the interaction of workers and employers. Labor economics looks at the suppliers of labor services (workers), the demands of labor services (employers), and attempts to understand the resulting pattern of wages, employment, and income. In economics, labor is a measure of the work done by human beings. It is conventionally contrasted with such other factors of production as land and capital. There are theories which have developed a concept called human capital (referring to the skills that workers possess, not necessarily their actual work), although there are also counter posing macro-economic system theories that think human capital is a contradiction in terms.

Welfare economics
Welfare economics is a branch of economics that uses microeconomics techniques to evaluate well-being from allocation of productive factors as to desirability and economic efficiency within an economy, often relative to competitive general equilibrium.[8] It analyzes social welfare, however measured, in terms of economic activities of the individuals that compose the theoretical society considered. Accordingly, individuals, with associated economic activities, are the basic units for aggregating to social welfare, whether of a group, a community, or a society, and there is no "social welfare" apart from the "welfare" associated with its individual units.

Economics of information
Information economics or the economics of information is a branch of microeconomic theory that studies how information and information systems affect an economy and economic decisions. Information has special characteristics. It is easy to create but hard to trust. It is easy to spread but hard to control. It influences many decisions. These special characteristics (as compared with other types of goods) complicate many standard economic theories.[9]

Applied
United States Capitol Building: meeting place of the United States Congress, where many tax laws are passed, which directly impact economic welfare. This is studied in the subject of public economics.
Applied microeconomics includes a range of specialized areas of study, many of which draw on methods from other fields. Industrial organization examines topics such as the entry and exit of firms, innovation, and the role of trademarks. Labor economics examines wages, employment, and labor market dynamics. Financial economics examines topics such as the structure of optimal portfolios, the rate of return to capital, econometric analysis of security returns, and corporate financial behavior. Public economics examines the design of government tax and expenditure policies and economic effects of these policies (e.g., social insurance programs). Political economy examines the role of political institutions in determining policy outcomes. Health economics examines the organization of health care systems, including the role of the health care workforce and health insurance programs. Education economics examines the organization of education provision and its implication for efficiency and equity, including the effects of education on productivity. Urban economics, which examines the challenges faced by cities, such as sprawl, air and water pollution, traffic congestion, and poverty, draws on the fields of urban geography and sociology. Law and economics applies microeconomic principles to the selection and enforcement of competing legal regimes and their relative efficiencies. Economic history examines the evolution of the economy and economic institutions, using methods and techniques from the fields of economics, history, geography, sociology, psychology, and political science.

History
The difference between microeconomics and macroeconomics was introduced in 1933 by the Norwegian economist Ragnar Frisch (Nobel Prize 1969).

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Finance / Financial statements
« on: November 15, 2018, 01:19:37 PM »
Financial statements
Financial statements are a collection of reports about an organization's financial results, financial condition, and cash flows. They are useful for the following reasons:
1. To determine the ability of a business to generate cash, and the sources and uses of that cash.
2. To determine whether a business has the capability to pay back its debts.
3. To track financial results on a trend line to spot any looming profitability issues.
4. To derive financial ratios from the statements that can indicate the condition of the business.
5. To investigate the details of certain business transactions, as outlined in the disclosures that accompany the statements.

The standard contents of a set of financial statements are:

1. Balance sheet. Shows the entity's assets, liabilities, and stockholders' equity as of the report date. It does not show information that covers a span of time.
2. Income statement. Shows the results of the entity's operations and financial activities for the reporting period. It includes revenues, expenses, gains, and losses.
3. Statement of cash flows. Shows changes in the entity's cash flows during the reporting period.
4. Supplementary notes. Includes explanations of various activities, additional detail on some accounts, and other items as mandated by the applicable accounting framework, such as GAAP or IFRS.

If a business plans to issue financial statements to outside users (such as investors or lenders), the financial statements should be formatted in accordance with one of the major accounting frameworks. These frameworks allow for some leeway in how financial statements can be structured, so statements issued by different firms even in the same industry are likely to have somewhat different appearances. Financial statements that are being issued to outside parties may be audited to verify their accuracy. If financial statements are issued strictly for internal use, there are no guidelines, other than common usage, for how the statements are to be presented. At the most minimal level, a business is expected to issue an income statement and balance sheet to document its monthly results and ending financial condition. The full set of financial statements is expected when a business is reporting the results for a full fiscal year, or when a publicly-held business is reporting the results of its fiscal quarters.

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5 Important Principles of Modern Accounting

Whether you’re in the business of selling widgets, providing cleaning services, tending to animals, or manufacturing industrial equipment, your business operates under the same basic principles of modern accounting. These principles are generally accepted practices of accounting, which became commonplace in the 1800’s, though the original concepts are as old as ancient Mesopotamia. The world of accounting took great strides with the treatise of bookkeeping, published by Luca Pacioli in 1494 within a book entitled, Summa de Arithmetica, Geometria, Proportioni et Proportionalita. These five basic principles form the foundation of modern accounting practices.

1. The Revenue Principle
This principle defines a point in time when bookkeepers may record a transaction as revenue on the books. The revenue principle states that revenue for the business is earned and recorded at the point of sale. This means that revenue occurs at the time at which the buyer takes legal possession of the item sold or the service is performed, not at the moment at which cash for the transaction is accepted by the seller. This concept is sometimes called the “revenue recognition principle.”

2. The Expense Principle
This principle defines a point in time at which the bookkeeper may log a transaction as an expense in the books. The expense principle, or expense recognition principle, states that an expense occurs at the time at which the business accepts goods or services from another entity. Essentially, it means that expenses occur when the goods are received or the service is performed, regardless of when the business is billed or pays for the transaction.

3. The Matching Principle
The matching principle states that you should match each item of revenue with an item of expense. For example, if you are selling tacos, you could count the expense of the shells, meat, and toppings at the time at which a customer buys the taco. In other words, you match the expense of the taco ingredients with the revenue earned from the sale of the taco. When a business applies the revenue, expense, and matching principles in practice, they are operating under the accrual accounting method.

4. The Cost Principle
The cost principle states that you should use the historical cost of an item in the books, not the resell cost. For example, if your business owns property, such as real estate or vehicles, those should be listed as the historical costs of the property, not the current fair market value of the property.

5. The Objectivity Principle
The objectivity principle states that you should use only factual, verifiable data in the books, never a subjective measurement of values. Even if the subjective data seems better than the verifiable data, the verifiable data should always be used. In addition to these basic principles, the accounting world operates under a set of assumptions, or things that accountants can assume to always be true.

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Branding / Re: BRAND AUDITS: Key for consistency and integration
« on: November 15, 2018, 01:10:42 PM »
Informative. Thanks..

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Pharmacy / Re: রোগের নাম সোরিয়াসিস
« on: November 15, 2018, 01:10:18 PM »
Informative. Thanks..

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