Smart contracts work via a decentralized application that allows digital business exchanges under the protection of regulations set by each party. These contracts ensure the protection of each parties privacy by enforcing only specific private data to be released upon request.
These are not run by a specific user rather run as they are programmed to the parties specifications. The executory functions are set and defined by the parties in the smart contract, much like any normal contract. The rules are all pre-defined and are enforced according to the terms. Parties can do transactions over the balance they record in their smart contracts.
Linking smart contracts and blockchains
Smart contract development begins via a computer code that runs on a blockchain network or any other distributed ledger technology. The payment mechanisms that evolve through smart contracts are increasingly used by Bitcoin and other cryptocurrencies.
Blockchains are deemed the most suitable technology to store smart contracts, mostly because of the security and transparency that comes from blockchains. Once the information in a smart contract is stored on a blockchain via the ‘blocks’ it also gets encrypted into a ledger shared between parties.
Blockchain is considered to be a flexible technology for smart contracts because one can virtually store and transact any type of data by giving a lot of options to do transactions. These are more cost effective for both parties that save significant time and don’t have to worry about the safety of their transactions either.
The most well known smart contracts are made via Ethereum, a popular cryptocurrency platform. Ethereum software has single handedly created the solidity language that writes smart contracts on the Ethereum Virtual Machine. The ethereum blockchain stores the data and the collection of codes that help run a smart contract.
An expansion of smart contract development over Ethereum has been via Hyperledger smart contract. The Hyperledger Fabric has added Solidity and Vyper as other languages to code smart contracts in. Furthermore there has even been an increase in the runtime of smart contracts for parties. The additional programming via the hyperledger allows for development of more decentralized applications. This is enabling developers to create more and more permissioned platforms for cryptocurrency trading.
Seeing as Bitcoin is the first cryptocurrency, it has not fallen behind in developing its smart contracts for users. Bitcoin smart contracts can be used on the core protocol layer and the Lighting Network. This is their version of the most instantaneous payment platform for Bitcoin users. These in effect are more time and cost-friendly that increases user interface in the long run.
Benefitting from smart contracts
As with almost all aspects of the cryptocurrency business, there are many plus points to having a smart contract. Smart contracts come with the assurance that you don’t need to monitor the workings or progress of any ongoing business activity. Automating your business comes with cost and time effectiveness that can save your resources for the future.
The time you would otherwise spend managing a number of different transactions all at once is saved, as well as the independence that comes with smart contracts. You do not need third party involvement making decisions for you rather all transactions are held automatically.
The greatest advantage of the blockchain is perhaps the protection from fraud. Complete anonymity is your biggest reliability. All your record is kept safe and once one transaction is done it cannot be reversed. This protects transactions as well as the lack of human involvement leaves little room for error.
Drawbacks of smart contracts
Even though most cryptocurrency platforms pride themselves on their guarantee to protect your data and identity, the increasing cybercrimes are a genuine fear. The involvement of multiple parties at once leaves room for any kind of criminal activity. This is largely because if your identity can be kept safe, anyone elses can be as well.
Hackers keep coming up with new attacks to compromise the integrity of such business transactions. Even smart contracts can fall prey to any hacker with sound knowledge of the language the parties encrypted the contract in.
These same hackers have been coming up with trigger attacks in the market that draw the parties to executing their contract before need be. This loophole in smart contracts has been problematic since the inaccurate turn of events has caused users a lot.
The non-reversal of contracts can be a good thing to protect the integrity of the deal, stopping either party from backing out. However there can be instances where the parties interests are not completely aligned and they do not realize that till it is too late. In such instances the manageability of such contracts comes under question.
The ever-increasing use in cryptocurrency has given rise to different avenues of dealing in this digital currency. Different technologies are coming up with ways to regulate, protect and enhance the abilities of cryptocurrency, smart contracts being one of them.




































































From vaccine inequality to economic apartheid
By Dr. Dan Steinbock
Thanks to the containment failures of Covid-19 and the resultant new variants, coupled with vaccine inequality, global prospects are overshadowed by economic apartheid – the polarization between the West and poorer countries.
Today, sub-Saharan Africa is in the grip of a third wave, parts of Latin America continue to see high levels of new deaths, and concerns remain about the Covid-19 situation in parts of South and Southeast Asia.
In Africa, the highly infectious Delta variant of coronavirus is spreading like a wildfire. Infection numbers have soared for 1.5 months with 224,000 new cases being recorded every week. Due to the low degree of testing, detection and vaccination, real numbers are much higher than official estimates.
In the past decade, the economic prospects of Africa have been touted as the “next big thing.” While development is unbalanced across the region, many countries have great secular growth potential. But Delta and other variants could derail that promise.
We are witnessing a disruptive shift from vaccine inequality to economic apartheid.
From Asia to UK and Delta variant
In early February, when the official narrative was that “the worst is over,” there were more than 110 million (confirmed, cumulative) Covid-19 cases and over 2.5 million deaths. Today, barely half a year later, the number of cases has almost doubled exceeding 200 million, while deaths have soared to 4.3 million. In both cases, real numbers could be two to three, in some cases even four times higher.
How did the international community end up in this dire status quo? The simple answer: In three phases.
Until summer 2020, the daily confirmed cases remained below 100,000 worldwide, thanks to stringent measures against COVID-19 in China and several other Asian countries. The dominant virus (Clade 19A, 19B) and its successors (20A, 20B, 20C etc.) were more manageable than contemporary variants.
If the Trump administration and the EU had abided by the WHO’s warnings in January 2021 and launched aggressive containment measures, much of the global catastrophe might have been preempted. But such measures were initiated only in late spring 2020.
As the net effect, the mushrooming cases in the UK resulted in a variant (20l, Alpha V1) that proved far more transmissible by fall 2020. Prime minister Boris Johnson promised herd immunity and early exit from lockdowns. Yet, the reverse ensued. The spread of the UK variant was further reinforced by continued mismanagement in the US and Brazil. So, the daily new cases peaked at 840,000 in January.
The third phase followed in late spring, when the complacency of Modi’s government caused a massive spread in India, unleashing the Delta variant (21A). In May, daily new cases climaxed at almost 900,000.
In early April, Delta still accounted for less than 5% of total cases worldwide; today, that figure is almost 75% of all cases worldwide (Figure 1).
Figure 1: The great covid-19 divergence
Source: NextStrain; DifferenceGroup.
Vaccine inequality
By late November 2020, Canada and the US had already pre-ordered up to 8-9 doses of vaccines per person. The UK, Australia and the EU followed in the footprints with 5-6 doses per person.
In January 2021, WHO chief Dr Tedros warned that, due to the unequal COVID-19 vaccine policies, “the world is on the brink of a catastrophic moral failure and the price of this failure will be paid with lives and livelihoods in the world’s poorest countries.”
By then, 40 million vaccine doses had been given in 50 rich-income economies. By contrast, 9 out of 10 people in poor countries were set to miss out on COVID-19 vaccine in 2021, according to Oxfam.
Hence, the drastic vaccination gap between the rich and the poor around the world. The new World Economic Outlook (IMF) estimates that close to 40 percent of the population in advanced economies has been fully vaccinated, compared with less than half that number in emerging economies, mainly due to China, but only a tiny fraction in low-income countries (Figure 2).
Figure 2: The great vaccine divergence
Source: WEO, IMF, July 2021.
And things are about to get a lot more challenging. Not so long ago, the EU pledged great vaccine support to poorer economies, particularly in Africa. That was manna from heaven to the region since only 1.2 percent of the entire African population are fully vaccinated today, according to the WHO.
Yet, the realities of vaccine support have proved very different. Last week, the African Union special envoy tasked with leading efforts to procure Covid-19 vaccines for the continent blasted Europe, saying that “not one dose, not one vial, has left a European factory for Africa.”
Economic apartheid
Thanks in part to the UK and Delta variants, forecasts for advanced economies have been recently revised up, whereas prospects for emerging and developing economies have been marked down for 2021, particularly for emerging Asia.
Yet, the real challenge is that these changes may not precipitate just cyclical fluctuations, but longer-term secular shifts. In August 2020, a year ago, my COVID-19 report projected years of lost progress and plunging living standards in all economies. In particular, lost decades in poorest countries, increasing divisions, and famines and conflicts in fragile states.
Last February, nearly half a year ago, I warned that vaccine nationalism by developed economies and the consequent vaccine inequality between developed and developing economies was likely to reinforce the projected consequences. Vaccine access would become critical for sustained economic recovery, while splitting the world in two.
That’s now the new normal; one that even the IMF has acknowledged. Vaccine access has emerged as the principal fault line for the global recovery. Where the IMF and other multilateral development banks may still be too optimistic is the assumption that these initial conditions have mainly short-term consequences.
In reality, the consequent effects are likely to have longer-term impact, due to continued mismanagement and premature exits in advanced economies, vaccine inequality around the world and the resultant new variants. The recovery is not assured even in countries where infections are currently very low so long as the virus circulates elsewhere.
Apartheid is defined as a policy or system of segregation or discrimination on grounds of race, or segregation on grounds other than race. The mismanagement of the pandemic, the rise of the UK and Delta variants (and new variants to come), coupled with vaccine inequality, are resulting in economic apartheid.
Composite PMIs (purchasing managers index) reflect the divergence between developed and emerging economies. While those of the former have surged, those in the latter have retreated over the past few months. In the short run, this is likely to mean an increasingly lopsided global recovery (Figure 3).
Figure 3: The great economic divergence
One planet, two worlds
Accordingly, near-term global recovery and longer-term economic prospects are splitting. In one bloc, advanced economies will look forward to further normalization later this year, thanks to aggressive fiscal stimulus packages, increasing debt-taking and accommodative monetary policies.
In the other bloc, developing economies – many emerging economies and most low-income economies – will face resurgent infections and rising COVID death tolls; but with limited fiscal resources, and not-so-accommodative monetary policies.
After four decades of misguided neoliberal policies, inequality is record-high within the high-income West. The stakes are reflected by the US where 7.4 million people are about to face eviction as the Biden administration refused to extend the federal eviction moratorium – while boosting military allocations. What’s far worse, however, is the increasing income polarization between the prosperous West and the poorer global South.
The ongoing economic apartheid between the high-income economies and poorer countries will foster increasing global economic uncertainty, extraordinary social turmoil, political volatility and extremist radicalization – which, in turn, the new protectionism and xenophobia in the West are likely to further inflame.
The worst is yet to come.
Based on Dr Steinbock’s global briefing of Jul 30, 2021
About the Author
Dr. Dan Steinbock is an internationally recognized strategist of the multipolar world and the founder of Difference Group. He has served at the India, China and America Institute (USA), Shanghai Institutes for International Studies (China) and the EU Center (Singapore). For more, see https://www.differencegroup.net