Authors

  • Iqbaljon Khaydarov
    Kokand University

DOI:

https://doi.org/10.71337/inlibrary.uz.jasss.96829

Abstract

This article focuses on the use of numerical sequences in economics. Analysis of economic processes and their planning requires the use of mathematical tools. Also, many people have heard of arithmetic progression, but not everyone can interpret it in economics. Arithmetic progression is used to model economic processes that have a tendency to constantly increase and decrease. Not only arithmetic progression, but also geometric progression can be used in economics. The geometric progression section also presents methods for finding the terms of the geometric progression studied in the section and methods for finding the sum of the terms of their formulas. The importance of numerical sequences, progressions and their microeconomic analysis, as well as operations in business planning, is also covered. Numerical sequences are an important tool for understanding the dynamics of economic growth and effective management. The application of numerical sequences to economics can be expressed in the following way: there are formulas for finding interest rates on loans from banks and loan amortizations. Two different methods are used to calculate these interest rates. They are arithmetic progression for simple interest, and geometric progression for compound interest. This process can be called debt amortization in short. In debt amortization, it can also be used to find the percentage of the remaining balance of a loan from a bank, variable interest rates, and the amount of interest that remains after the loan is paid.

 

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APPLY THE RESULT TO ECONOMIC PROCESSES.

Iqbaljon Khaydarov

Kokand University, Teacher, Department of Digital

Technologies and Mathematics.

Abstract:

This article discusses the importance of the concept of derivative in economic

processes, its role in optimization and marginal analysis. It explains how the concepts of

marginal revenue, profit and cost are determined through derivatives, as well as methods for

calculating price elasticity. The practical application of the derivative in economic processes is

examined through examples, and the importance of the derivative in the strategies for

maximizing the profit of companies is emphasized.

Keywords:

Derivative, economic processes, optimization, limit analysis, elasticity.

Аннотация:

В данной статье рассматривается значение понятия производной в

экономических процессах, её роль в оптимизации и предельном анализе. Объясняется, как

с помощью производных определяются предельный доход, прибыль и издержки, а также

методы расчёта ценовой эластичности. Практическое применение производной в

экономике проиллюстрировано на примерах, подчёркивается важность производной в

стратегиях максимизации прибыли компаний.

Ключевые слова:

производная, экономические процессы, оптимизация, предельный

анализ, эластичность.

Introduction

Mathematics and economics are closely related, and one of the main tools of mathematical

analysis - the concept of the derivative - is widely used in modeling and analyzing economic

processes. The use of the derivative is of great importance in improving the efficiency of

economic processes, making optimal decisions, and forecasting processes. The derivative is used

to determine the speed and direction of economic changes and plays an important role in

business and macroeconomic policy.

Concepts developed on the basis of the derivative in economic models and theories, such as

marginal revenue, marginal cost, and marginal profit, are key indicators in making business

decisions. Marginal analysis is widely used by enterprises to optimize production volumes,

effectively use resources, and set prices. In addition, the derivative is also used to define the

concept of elasticity, which allows us to determine the sensitivity of consumers to demand.

Therefore, this article examines the role of derivatives in economics, their practical applications,

and methods of analysis. Based on scientific sources, theoretical concepts, and practical

examples, it examines how derivatives help in understanding and managing economic processes.

The results of the study provide a deeper understanding of the effectiveness of derivatives in

economic modeling and strategic decision-making.

Methodology

The article presents theoretical and practical analyses of the application of derivatives in

economic processes based on mathematical analysis and economic modeling methods. The


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research shows how basic economic concepts such as marginal analysis, optimization, and

elasticity can be expressed using derivatives through examples.

The theoretical foundations of economic modeling were developed using the principles of

economic analysis put forward by Samuelson and Nordhaus (2009). Also, the mathematical

expressions of the concepts of marginal profit and cost were studied based on the methods of

microeconomic analysis proposed by Varian (1992). At the first stage, the use of derivatives in

economic models was analyzed. How indicators such as marginal revenue and marginal cost are

calculated based on derivatives and their role in the development of economic strategies was

studied based on examples. For example, a company can optimize profits by increasing or

decreasing the volume of product production.

In the second stage, elasticity analysis was conducted using the derivative. Demand elasticity is

used to determine the relationship between the price of a product and the volume of consumer

demand. In this stage, demand elasticity was calculated using the derivative at different price

levels and how consumers responded to price changes was studied. Silberberg and Suen (2001)

emphasized the use of the derivative in economic elasticity analysis and emphasized its

importance in strategic decision-making. In the third stage, optimization problems were solved.

In the process of economic modeling, optimal points were identified using the second-order

derivative analysis. In particular, methods for maximizing profit and minimizing costs were

studied. Differential equations and boundary conditions were used in these processes. Production

and pricing problems were analyzed based on research by Chiang (1984) on the importance of

the derivative in economic modeling.

The results were compared with economic models and real-life data, and the role of the

derivative in optimizing economic processes was determined. The research methods used were

mathematical differentiation, limit analysis, and statistical analysis based on empirical

observations.

Results

The results of this study clearly confirm the role and importance of the derivative in the

application of mathematical analysis to economic processes. Based on the formulas of marginal

profit, marginal revenue and marginal cost studied during the study, the possibilities of

companies to maximize their profits were identified. Static and experimental analyses have

shown that the determination of the growth rate of economic variables through the derivative and

the determination of the point of infinity in the optimization process are important. At the same

time, the application of the concept of the derivative in economic models and theories serves to

achieve reliable results in the calculation of marginal analysis and price elasticity.

The application of the MR = MC condition based on boundary analysis helped companies

determine the optimal production volume. This approach made it possible to reduce production

costs, increase profit levels, and use resources efficiently. Using the product of price elasticity,

consumer demand sensitivity was determined and strategies were developed to increase market

competitiveness.

The results of the study were noteworthy, as scientists Abdurakhmonov (2010), Shermatov

(2012), and Millatov (2015). As they noted, the use of mathematical analysis tools accurately

reflects the complexity of economic processes and allows for high efficiency in making business

decisions. The integration of Yunusov's (2020) approaches and traditional theories opened up

new horizons in the formation of economic strategies.


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In addition, the study found that the use of derivatives is important in the formation of not only

theoretical foundations, but also practical strategies in the process of making economic decisions.

In this regard, it was observed that the ideas put forward by economists, in particular, the views

of Karimov (2018) and Yunusov (2020), are consistent with practical results. As they noted,

using the derivative methodology, it is possible to increase production efficiency, quickly

respond to market changes, and optimally allocate resources. In addition, this approach has its

place in ensuring the stability of the economic system. This approach helps not only to

strengthen theoretical foundations, but also to optimize the process of making practical decisions.

All this serves to significantly accelerate economic development.

The use of derivatives in economic processes helps to solve important problems such as

maximizing or minimizing profit. The following is a discussion of the issue of maximizing and

minimizing profit to illustrate how derivatives are used in real economic situations.

Problem:

The total profit of a company is represented by the following function:

P(x)=−2x

2

+40x−100

where x is the number of units produced (thousands of units). We use derivative analysis to

determine the optimal points for the company to maximize or minimize its profit.

Solution:

1. Find the derivative to maximize and minimize the profit.

To determine the maximum and minimum points, the first derivative of the function is taken:
P′(x)=

��

​ (−2x

2

+40x−100)=−4x+40

To determine the extremum points, the derivative is set to zero:

−4x+40=0

x=10

This value can be the point at which the company's profit is maximized or minimized.

2. Determining the type of extremum using the second derivative

The second derivative of a function is:
P′′(x)=

��

​ ​ (−4x+40)=−4

Since the second derivative is negative:

P′′(10)=−4<0

This result shows that the function reaches a maximum at x=10.

Result:

• The company achieves maximum profit by producing 10,000 units of the product.

• Minimum profit is achieved by increasing or decreasing production indefinitely.

• Derivative analysis helps companies determine the optimal production volume and develop

economic strategies.

Conclusion:

The study proved that the derivative is of great importance in the analysis and optimization of

economic processes. Marginal profit, income and cost indicators, as well as price elasticity are

important elements in the economic model. These approaches have been widely used in the

formulation of business decisions, improving production efficiency, and determining the

sensitivity of consumer demand. The results create a solid foundation for further comprehensive

research and the development of economic theories. According to scientists, this methodological


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approach plays an important role in solving modern problems of the economy and making

strategic decisions, as well as in achieving practical results.

List of used literature.

1. Samuelson, P. A., & Nordhaus, W. D. (2009).

Economics

(19- chi nashr). McGraw-Hill

Education.

2. Varian, H. R. (1992).

Microeconomic Analysis

(3- chi nashr). W. W. Norton & Company.

3. Silberberg, E., & Suen, W. (2001).

The Structure of Economics: A Mathematical Analysis

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McGraw-Hill.

4. Chiang, A. C. (1984).

Fundamental Methods of Mathematical Economics

. McGraw-Hill.

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Iqtisodiy modellashtirishda matematik analiz

. Toshkent:

O‘zbekiston Noshirligi.

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Chegaraviy tahlil va iqtisodiy qarorlar

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Biznes strategiyalarida hosilaning qo‘llanilishi

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Iqtisodiy tizimda innovatsion yondashuvlar

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Iqtisodiyot Noshirligi.

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Bozor o‘zgarishlarining matematik tahlili

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