Find a real world example from XXXXXXXXXXof a change in market conditions for example an observed change in prices or the quantity of a good and services. using economics such as the demand and supply...

Introduction:
COVID-19 pandemic is the most relevant example in the real world that have disrupted the economic activities and changed the market conditions across the world during 2019-2020. It is not even possible to predict the economic impact of unprecedented nature of this health crisis. The outbreak of Covid -19 has forced the governments around the world to take several unprecedented measures to protect human lives. On the top of human sufferings, the dramatic fall in trade and output will have a very painful consequence. (WTO, 2020)
Corona virus was first originated in China’s Wuhan district in last week of December and later spread almost every parts of the world. WHO has declared COVID-19 as pandemic on March 11, 2020. The declaration has prompted all the governments to take prompt and drastic actions to protect their economies. Global economic growth has already fragile and experienced a slowdown because of trade tension between US and China and policy uncertainty. The outbreak of the pandemic has intensified the problem. (TheOneBrief, 2020)
With the countries across the world are going through lockdown, the movement of people, goods and services across the countries and even states inside the countries have completely halted. Governments of every nation are advising people to stay at home and practice social distancing in order to reduce the contamination of the virus.
A change market condition and a change in the demand: a case for food delivery service
While the demand and supply of all goods and services have heavily disrupted, there are few services that have observed a spike in the demand. For example, the demand for food delivery service has boosted significantly. In the fear of contamination, people are afraid of going out and prefer to order online for essential groceries and food items. It has considerably increased the demand for food delivery services. Rising demand for food delivery service will also stimulate the demand for courier and messenger service. The global messenger and courier market are predicted to have an annual growth rate (CAGR) of 11.1% between 2019 and 2023. (Marketinsider, 2020)
The leading food delivery service that include Deliveroo, Postmates and UberEats have experienced a surge in demand for their services. When the demand for all other goods and services have dramatically slides down, food delivery system is one market that has observed an unexpected rise in demand. Many of the food delivery services have introduced the contactless service in order to protect their valued customers. (BsinessWires, 2020)
We can show the impact on food delivery service with the help of following diagram:
SS
Price
P’
Q
Q’
P
DD”
DD
Quantity
The changed market condition due to outbreak of Covid-19 has resulted a rightward shift of the demand curve from DD to DD’. As a result, the equilibrium quantity has increased from Q to Q’ and the equilibrium price has increased from P to P’.
A change market condition that leads to supply shortage: a case for toilet paper
As several countries are now under lockdown due to the outbreak of COVID 19 pandemic, people around the world are stockpiling the essential supplies. However, there was one commodity that has observed a surge in demand: toilet paper. The shelves in the supermarkets have become empty without toilet paper. The sudden demand shock does not relate with the utilization at all because it does not change or increased. Hoarding up the toilet paper has become an obsession. Normal supply chain fails to meet such a dramatic surge in demand. (Fisher, 2020)
This is hoarding effect that creates a supply shortage in the market. All the symptoms of shortage in supply are related to changed market conditions driven by COVID 19 pandemic. The supply shortage of the toilet paper is caused by the panic buying and hoarding. Panic buying of the consumers has emptied...