The director of the central bank said digital currency

1.

As of September 2019, the central bank's digital currency has not been issued

the development history of the central bank's digital currency is as follows

in 2014, the Central Bank of China set up a special research team to conct in-depth research on the framework of digital currency issuance and business operation, key technologies of digital currency, issuance and circulation environment, and legal issues faced

in January 2017, the central bank officially established the digital currency Research Institute in Shenzhen

in September 2018, the Institute of digital currency built a trade finance blockchain platform

On July 8, 2019, at the launching ceremony of the digital finance open research program and the first academic seminar, Wang Xin, director of the Research Bureau of the people's Bank of China, disclosed that the State Council has officially approved the research and development of the central bank's digital currency, and the central bank is engaged in corresponding work in organizing market institutions

on August 2, 2019, the central bank said at the second half of 2019 work video conference that it would speed up the research and development of legal digital currency

on August 10, 2019, Mu Changchun, deputy director of the payment and Settlement Department of the central bank, said at the Yichun forum of 40 people of China finance that "the central bank's digital currency can be said to be ready"

on August 18, 2019, the CPC Central Committee and the State Council issued their opinions on supporting Shenzhen to build a leading demonstration zone of socialism with Chinese characteristics, which mentioned supporting innovative applications such as digital currency research in Shenzhen

on August 21, 2019, the official micro blog of the people's Bank of China released two articles on digital currency. One is fan Yifei, vice president of the people's Bank of China, who was published in January 2018, talking about some considerations of digital currency of the people's Bank of China. The other is mu Changchun, deputy director of the Department of payment and settlement, who delivered a speech in Yichun on August 10

extended data:

practical significance

the digitalization of central bank's currency helps to optimize the central bank's monetary payment function, improve the central bank's monetary status and the effectiveness of monetary policy. The central bank's digital currency can become an interest bearing asset to meet the holder's reserve demand for safe assets, and can also become the lower limit of bank deposit interest rate

can also become a new monetary policy tool. At the same time, the central bank can affect the bank's deposit and loan interest rate by adjusting the central bank's digital currency interest rate, and help break the zero interest rate lower limit

operation system

fan Yifei, vice governor of the people's Bank of China, said in the article that the digital currency of the people's Bank of China should adopt a two-tier operation system. This model does not change the relationship between creditor's rights and debt of currency in circulation, does not change the existing money supply system and al account structure, does not constitute a competition for commercial banks' deposit currency, and does not increase commercial banks' dependence on the interbank lending market

will not affect the lending ability of commercial banks, and will not lead to the phenomenon of "financial disintermediation". At the same time, because it does not affect the existing monetary policy transmission mechanism, it will not strengthen the pro cyclical effect under the pressure environment, and it can improve the convenience and security of payment, and it also has the credit advantage of central bank endorsement

2. DCEP (digital currency electronic payment), the Chinese version of digital currency project, namely digital currency and electronic payment instrument, is the legal digital currency in the research of the people's Bank of China and a kind of digital currency
Digital RMB, issued by the people's Bank of China, is a controllable anonymous payment tool with value characteristics and legal compensation, which is operated by designated operating institutions and exchanged with the public. It is based on the generalized account system, supports the loose coupling function of bank accounts, and is equivalent to banknotes and coins

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3. On the issue of issuing their own digital currency, central banks are always less thunderous. Central banks around the world are considering issuing their own digital currencies to compete with cryptocurrencies such as bitcoin, but they have been unable to do so for a long time

the media's attention to the central bank's digital currency has increased significantly, especially after Zuckerberg testified in Congress on the Libra issue and Christina Lagarde acknowledged the "clear demand" for stable currency at her first media reception as president of the European Central Bank, which seems to have changed the public's view on this matter, Let many people in cryptocurrency community think that cbdcs is in sight<

according to the latest survey report released by the bank for International Settlements, central banks in the past seven years have been investigating this technology and assessing its impact. Of the 63 central banks surveyed, 55 said they were unlikely to issue cbdcs in the next three years, and only one reported that they were "highly likely to issue large-scale cbdcs in the next three to six years."

although the proportion of central banks studying cbdcs is very high, the crux of the problem is that it is mainly theoretical and investigative work. Only five central banks have concted more in-depth research and real project development or experimentation - but that still does not mean that they will necessarily issue cbdcs

through close observation, it is more and more obvious that both Libra recently released by Facebook and the new stable currency assets have had a significant impact on the central bank. Today's situation took hundreds of years to form, but it changed in a few months; Competition, the most terrifying and unfamiliar concept that has never been thought of before and penetrated into the elite society of central banks, is now knocking at the door

it can be said that the solution to the current situation is still unclear. Some people who are familiar with these things even say that they are bluffing. However, in Lagarde's own words, the slow and wait-and-see regulatory approach can no longer meet the needs

1. What is central bank digital currency<

what is the difference between central bank digital currency CBDC and other digital currencies

CBDC is a new form of currency, which is directly issued by the central bank in digital form as legal tender. The current form of legal currency is cash, reserve deposit or balance settlement< There are two main differences between CBDC and other digital currencies (including cryptocurrency and other forms of central bank currency):

1. CBDC has nothing to do with cryptoassets. They're not decentralized, they don't have to be blockchain based, and they're certainly not anonymous, they're not unlicensed, they're not censored< 2. Contrary to the current digital cash, the operation structure of CBDC will be different from other forms of central bank currency. CBDC has more powerful functions. They are programmable, can generate interest, can be cleared in near real time, and have cheaper handling charges and wider openness

when designing CBDC, the speed of central banks is different. Different central banks adopt their own approach. However, in general, there are three problems being explored: whether CBDC should be based on token or account number, whether CBDC should be batch (only open to banks) or retail (open to the public), and whether it should be based on DLT

when CBDC is to be implemented, things will become complicated, and there are many thorny problems to be considered

for example, once CBDC is launched, does it need to cancel cash? Should CBDC carry interest? Should they have face value like cash? Or linked to the total price index? What impact will this have on commercial banks? What about anonymity and privacy? All these questions need to be answered<

2. Motivation for issuing CBDC

in the 2017 staff discussion paper, the Bank of Canada gave six reasons for issuing CBDC in an article entitled "central bank digital currency: motivation and impact":

1. Ensure that the central bank provides sufficient cash to the public, and maintain the seigniorage revenue of the central bank

2, Support non-traditional monetary policy

3. Rece overall risk and improve financial stability

4. Improve payment competitiveness

5. Promote financial inclusiveness

6. Curb criminal activities

looking back at the bank for International Settlements survey we analyzed earlier, payment security and domestic efficiency are selected as the most important motives of the central bank. According to a large number of papers published by the central bank and other large financial institutions, for developed countries, the transformation into a cashless society is the main driving factor, while for developing countries, financial inclusiveness, cost rection and operational efficiency are the main motivation

throughout the rest of the reports and the literature that can be found, the fierce competition brought about by bitcoin and other innovations in the cryptocurrency instry, as well as the clear need for "one step ahead", of course, are not listed as the reasons for issuing CBDC< The advantages and potential risks of CBDC are very low.

if the central bank starts to launch CBDC and succeeds in the end, there are many potential benefits

from a technical point of view, CBDC is much better than the current form of legal currency. They can be tracked better, collect taxes more conveniently, transmit monetary policy better, have better financial inclusiveness, and rece the cost of procing physical currency

the most obvious advantage is that payment is cheaper and faster, whether it is domestic payment or cross-border payment

in addition to the design and implementation problems, a key problem of issuing CBDC is that CBDC may increase the risk of bank operation. However, this only happens when banks promise that their deposits can be converted into CBDC on demand, which is not necessarily the case, according to the Bank of England document

4. Facts on the ground

how far is it from us to see a real CBDC appear in the market? It's hard to estimate, but at present, we can sum up the current situation in one sentence: all talk but no practice

if we put aside the failed digital currencies of Ecuador, Tunisia and Venezuela, we can only do theoretical research, a small amount of experiments, and issue some feasible CBDC issuance announcements supported by the state in the future

the most famous CBDC projects in progress are: e-peso in Uruguay (the project was successfully tested in 2018), DCEP in China, "project Inthanon" in Thailand, e-krona in Sweden (still in the research stage)...

5. The revolution has not yet been successful, and comrades still need to work hard

considering the factors mentioned above, Most of the headlines about CBDC's upcoming release are groundless. All projects scheled to be released this year have been delayed

in fact, there is still a long way to go for the birth of CBDC, and to convince the public, we need more than a statement. Given the current situation, it seems that CBDC and other cryptocurrencies may not affect each other - at least for now.

5.

f=N μ N is the positive pressure, that is, the pressure acting on the contact surface, μ It is the dynamic friction coefficient, which refers to the influence factors of the roughness of the contact surface on the friction. Or use the balance f = f; It's only used when it's stationary or moving in a straight line at a constant speed, but it's the most used in junior high school

the so-called friction is the force that hinders the relative motion of the object, and the direction of friction is opposite to the motion direction or relative motion direction of the object. The conditions of friction are as follows:

(1) two objects must contact each other

(2) there was extrusion between two objects

(3) there is a tendency of motion or relative motion between two objects

If an object is stationary on a horizontal plane, it will not be affected by friction if it is not pushed or pulled. If thrust or pull is received, it belongs to the category of static friction. The size of friction is equal to that of pull or thrust, and has nothing to do with the gravity or pressure of the object. Only the maximum static friction is related to the pressure or gravity on the object

if the object is not pushed by 10N force, the object will be subjected to static friction, which is equal to the thrust. Just push with 15N force, and the friction force on the object is the maximum static friction force. If the thrust force is increased later, the friction force will not change. Theoretically, the sliding friction of objects is less than the maximum static friction, but it is generally considered that they are equal

The friction force is f = 15-10 = 5N

extended data:

methods to increase beneficial friction

(1) increase the roughness of contact surface

(2) increase the pressure

(3) change rolling friction into sliding friction

(1) replace sliding friction with rolling friction

(2) make the contact surface separate [form a layer of air cushion or magnetic suspension on the contact surface of the object]

(3) decrease the pressure

(4) rece the roughness of the contact surface

In engineering technology, people often rece friction by applying lubricating oil. The science of this problem is called tribology, which is a branch of mechanical manufacturing

If two objects, which are in contact with each other and squeeze each other, but relatively still, only have a relative sliding trend under the action of external force, but do not have relative sliding, then the force between their contact surfaces hindering relative sliding is called "static friction". When the static friction increases to the maximum, the object will move

size: the static friction varies according to the external force, but there is a maximum value, which is called the maximum static friction. The maximum static friction is slightly greater than the sliding friction

direction: tangent to the contact surface, opposite to the direction of relative motion trend

On the basis of a large number of experiments, G. amunton and C. - A. de Coulomb proposed the following law of friction in 1699 and 1781:

① the friction between two objects in contact does not exceed a certain maximum value, which has nothing to do with the size of the contact area

(2) the maximum value of friction is proportional to the normal pressure n between two objects

(3) the direction of friction is opposite to the sliding direction of the object, and its magnitude is directly proportional to the normal pressure n between the two objects

the above conclusion is only a rough empirical rule, but because it was found in the early days of mechanical science, it was called the law of friction, also known as Coulomb's law