- Construction economics is like the branch of economics that shows the pattern of some development . Construction economics conducts research in the economic efficiency of investments and technological progress in construction . Construction economics is linked with national economic planning, with a number of special economic disciplines such as finance , statistics, accounting, and economic performance . It serves as for determining the effectiveness of technical solutions to problems in the construction projects and the performance of construction work.

- Economics is a study of how people use their limited resources to fulfil their unlimited wants. Basic economic concepts :

- Scarcity

- Choice

- Opportunity cost

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-Basic economic problems that always occur are the type of goods and services to be produced, the cheapest method of production and the conveyance of income.

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- Macroeconomics are to achieve unemployment and maintain price stability.

- Monetary policy is a policy which employs the central bank’s control of the supply of money to achieve the objectives of general economic policy. 

- Fiscal policy refers to the regulation of the level of government spending, taxation and public debt.

- A situation when quantity demanded and quantity supplied is equal, and there is no tendency for price or quantity to change.

Surplus
- A situation when quantity supplied in market is greater than the quantity demanded in market.

Shortage
- A situation when quantity demanded in market is greater than the quantity supplied in market.

              What I have learnt from Dr Nazirah is there are many benefits that we can get by applying green construction in construction industry. From social perspective, it is undeniable that the materials produced using green elements could give comfort and satisfaction towards the users as they are user friendly. In terms of environment, we could reduce the number of unwanted materials by using them as part of materials in construction work. It also can reduce the pollution and helps to improve the water quality. If green elements are being used in construction industry for a long period of time, the number of rubbish can be reduced. All these new information really give me lots of new knowledge on green environment. The way Dr Nazirah promoted the uses of green elements in construction industry makes me realize that I could also make an improvement towards the environment even if I am in this field. She also said that it is everyone responsibilities to protect the earth and that is why it is very important for us to apply these green elements in construction field.

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- The characteristics of digital economy 
* Wealth
* Digitisation 
* Virtualization
* Molecularization
* Networking
* Disintermediation
* Convergence
* Innovation
* Prosumption
*Immediacy 
*Globalization
* Discordance.

- Gig economy is defined as a fragmented work where someone gives a task for a certain amount of time. Also, it is known as a short time contracts or works.

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- There are a lot of benefits in gig economy such as it can lower payroll expenses, gives flexibility in managing hours to expected demand for their products. Some of the benefits for the workers are a flexible hours of working, provides a way to earn an extra income, and more autonomy where people can work from home.