MindMap Gallery First-class Construction Engineer Examination Summary of Knowledge Points in Chapter 1 of Engineering Economics
This is a mind map about engineering economics. The main contents include: value engineering, equipment update analysis, uncertainty analysis, economic effect evaluation, and time value of funds calculation and application.
Edited at 2024-04-11 22:45:02One Hundred Years of Solitude is the masterpiece of Gabriel Garcia Marquez. Reading this book begins with making sense of the characters' relationships, which are centered on the Buendía family and tells the story of the family's prosperity and decline, internal relationships and political struggles, self-mixing and rebirth over the course of a hundred years.
One Hundred Years of Solitude is the masterpiece of Gabriel Garcia Marquez. Reading this book begins with making sense of the characters' relationships, which are centered on the Buendía family and tells the story of the family's prosperity and decline, internal relationships and political struggles, self-mixing and rebirth over the course of a hundred years.
Project management is the process of applying specialized knowledge, skills, tools, and methods to project activities so that the project can achieve or exceed the set needs and expectations within the constraints of limited resources. This diagram provides a comprehensive overview of the 8 components of the project management process and can be used as a generic template for direct application.
One Hundred Years of Solitude is the masterpiece of Gabriel Garcia Marquez. Reading this book begins with making sense of the characters' relationships, which are centered on the Buendía family and tells the story of the family's prosperity and decline, internal relationships and political struggles, self-mixing and rebirth over the course of a hundred years.
One Hundred Years of Solitude is the masterpiece of Gabriel Garcia Marquez. Reading this book begins with making sense of the characters' relationships, which are centered on the Buendía family and tells the story of the family's prosperity and decline, internal relationships and political struggles, self-mixing and rebirth over the course of a hundred years.
Project management is the process of applying specialized knowledge, skills, tools, and methods to project activities so that the project can achieve or exceed the set needs and expectations within the constraints of limited resources. This diagram provides a comprehensive overview of the 8 components of the project management process and can be used as a generic template for direct application.
Engineering Economics
Time value of money calculation and application
Calculation of interest
6 factors that affect interest rates
The level of social average profit rate---the primary factor
Market capital supply and demand
Risks that funds need to bear
The length of time the debt funds are used
Government macro-control
The stage of the economic cycle – whether it is expansion or recession
simple interest and compound interest
Simple interest: profit does not make profit F=P*(1 n*i single)
Compound interest: Benefit F=P*(1 i) n is divided into intermittent and continuous compound interest. In fact, it is mostly intermittent compound interest.
Nominal interest rate and effective interest rate
Nominal interest rate r=12%
Quarterly effective interest rate i=r/4=3%
The annual effective interest rate ieff=(1 i)4-1=12.55%
Fund equivalent calculation and application
4 factors that influence the time value of money
When to use funds
How long the funds will be used
The amount of funds used
capital turnover speed
Calculation formula
Given P, find F F=P*(1 i)n
Given A, find F F=A*(1 i)n-1/i
Given A, find P P=A*(1 i)n-1/i*(1 i)n Note that it is the end of the year
economic effect evaluation
Contents of Economic Effect Evaluation
What abilities and states, please pay attention to the table in the handout
For operating plans, evaluate their profitability, solvency, and financial viability; for non-operating plans, only analyze financial viability;
According to the nature of the evaluation method; qualitative and quantitative; according to whether to consider time factors: dynamic and static; whether to consider financing analysis: before financing (the entire calculation period, total profitability) and after financing;
Economic effect evaluation index system
Divided into static indicators and dynamic indicators: remember that static indicators are debt solvency (interest reserve ratio, debt service reserve ratio, current ratio, quick ratio, asset-liability ratio), investment rate of return, static investment payback period
Calculation of the static investment payback period Pt Calculation of the year in which the cumulative net cash flow is greater than zero minus one, plus the cumulative cash flow of the previous year divided by the inflow minus the outflow in the year in which a positive number occurs
For the calculation of financial net present value FNPV, the solution greater than zero is feasible, and the solution less than zero is not feasible; remember the advantages and disadvantages (the sum of the present values of cash flows in each year)
Financial internal rate of return FIRR: For the profitability of funds that have not yet been recovered in the plan, calculate it through similar triangles and compare the size of Ic with the plan. If the plan is greater than Ic, it is acceptable, and vice versa is unacceptable;
Comparison of multiple options
Relationships between schemes: independent relationships, mutually exclusive relationships, and related relationships
Incremental indicator comparison steps: pay attention to the sorting question
uncertainty analysis
Break-even analysis (only applicable to financial analysis)
Linear profit and loss: the content of fixed costs and variable costs. Note that piece rate wages are variable costs.
Volume cost and profit model: total cost = fixed cost (unit variable cost, business tax and surcharge) * production volume
The lower the break-even point, the better ≤ 70% technical solution safety
Sensitivity analysis (can be used for both financial analysis and economic analysis)
Methods and steps: 1. Find indicators; 2. Find factors; 3. Calculate the impact (through sensitivity analysis tables and sensitivity analysis charts, where the greater the slope of the sensitivity analysis chart, the more sensitive it is); 4. Determine the sensitive factors (the sensitivity coefficient is the slope The larger the rate, the more sensitive it is, and the critical point is closer to 0, the more sensitive it is); 5. Analyze the results of sensitive factors
critical point
Equipment update analysis
Equipment wear and compensation
1. Wear is divided into tangible wear, invisible wear, and comprehensive wear; 2. Tangible wear is divided into: the first tangible wear (external force), the second kind of wear (equipment idle, natural force wear); invisible wear is divided into; first One kind of scientific and technological progress reduces the cost of producing the same equipment, and the second is the emergence of new equipment and new processes; 3. Partial compensation for tangible wear and tear is "repair", and full compensation is "updating"; partial compensation for invisible wear and tear is "modern modification", All compensation is "updated".
Determination of equipment economic life
Natural life (determined by tangible wear), technical life (determined by invisible wear), economic life (determined by both)
Average annual asset consumption cost, average annual operating cost, average annual use cost, N0 corresponding to the lowest annual average use cost is the economic life of the equipment; pay attention to the calculation formula
Economic Analysis of Equipment Renewal Plan
The comparison and selection of equipment updates only considers current and future cash flows and is not affected by silent costs; sunk cost = equipment book value - current market value
Economic Analysis of Equipment Leasing Plan
What the lease has is the right to use, and the lease is divided into finance lease (the expired equipment is owned by the lessor, usually the lessor is not responsible for maintenance and repair) operating lease (the lessor is responsible for the maintenance and repair)
Advantages and disadvantages of leasing: 1. Rent can be deducted before income tax; 2. It can maintain the flow of funds and will not worsen corporate assets and liabilities; 3. It can avoid the impact of inflation and interest rate fluctuations; Disadvantages: 1. Only use rights, 2. The rent is greater than the purchase amount, forming a long-term liability, 3. The compensation for breach of contract is relatively large.
Tax calculation method R=P*(1/N I R)
When leasing, you can pay less income tax on the leasing fee; when purchasing, you can pay less income tax on the depreciation fee and interest.
Value Engineering
value engineering principles
1. Value engineering calculation formula V=F/C; 2. Five ways to improve value, two-way (F becomes larger and C becomes smaller, the best), conservation (F remains unchanged, C becomes smaller), improvement ( C remains unchanged, F becomes larger), investment type (C becomes a little larger, F is greatly improved), sacrificial type (F becomes smaller, C becomes greatly smaller)
7 characteristics of value engineering, see handout --- key points
Value engineering implementation steps
Preparation Phase
Object selection methods: 1. Factor analysis (collective experience); 2. ABC analysis (the number of Category A is small and the cost is high); 3. Forced determination method; (0-1, 0-4 scoring method) 4. Percentage analysis; 5 , value index method
analysis stage
1. Note that data collection belongs to the analysis stage; 2. Function analysis includes: function definition, function organization (usually using functional system diagram), function measurement; 3. Function evaluation (judgment of V and 1), 4. V < 1 needs improvement
innovation stage
Methods: brainstorming, Gordon method (fuzzy goal method), expert opinion (Delphi method), professional inspection method
Implementation phase
Organizational implementation, funding implementation, material implementation, time implementation