The US and UK are facing an acute shortage of skilled workers for the booming economy as the cost of living and other factors push people to find other jobs.
But it is not just the US where the crisis is acute.
In many other countries, shortages are growing in many areas, including Australia, New Zealand, the US and the European Union.
There are also shortages in China, India and other emerging economies, according to the International Labour Organisation.
Here are some of the top reasons why the labour market is tight.
Key points: The number of H1Bs available in the US is more than 10 times the UK’s, while in the EU it is just over 3 times that of the US.
There is an acute labour shortage in the USA, but the UK has a much better record of securing H1b visas from the USThe US and US-based IT outsourcing firms are facing growing pressure to find workers for their technology services in the wake of the economic downturn.
The number one source of H2B visas for companies is the H1-B programme, which provides temporary work visas for US workers.
These are temporary visas that allow people to stay in the country for up to five years, but if they do not apply for an extension they are not granted.
It is also called the H2-B visa because they are only valid for three years.
However, it is widely believed that employers are turning to other means of attracting foreign workers, including the H3-B, which is for companies with a workforce of up to 500 people.
The UK has also been hit hard by the collapse in the value of the pound following the Brexit vote.
As a result, the value in the pound has been rising significantly in recent months, with the unemployment rate now hovering at almost 16%.
Many companies are looking for H1s and H2s for the new year, while some companies are not looking to hire at all because of the fall in the cost-of-living in the area.
But the number of people available to work for companies that do not need them is far greater in the United States than in many other parts of the world.
This has been highlighted by the latest figures from the National Employment Law Project (NELP), which analysed employment data in 20 US states from August to November.
It found that there were 1.4 million unemployed US workers in September, compared to 1.1 million unemployed UK workers.
The report also found that the number and types of workers available for H-1B work in the state is also much higher than the number available for work in Britain.
This is particularly true for companies in California and Washington, where H1 workers are more likely to be able to get work in California than in other states.
What is happening to UK workers?
According to the NELP, there were 8.3 million H1BS visas issued in the month of September, but only 4.6 million of them were used by UK companies.
That means that the UK only issued around one-fifth as many H1bs visas as it would have expected.
But according to figures from H1.com, there are currently around 200,000 UK employers who have signed up to work on H-3 visas, which are the kind of visas that H1 visa holders can use to work in other countries.
These visas are typically granted for three to six months and are granted for an annual cap of $25,000.
But as companies seek H1 and H3 visas to fill vacancies, the demand for these visas is increasing, and companies are now looking for people with skills that are not already being employed in the job.
There have also been reports of firms using H3 workers to fill job vacancies in China and India.
This suggests that there is an ongoing shortage of workers in those countries.
The H1 system The H-2B system The US has one of the highest rates of H-B visas per head of population in the world at 5.1, which accounts for a large proportion of all the visas available.
H-5s are visas that only the top 10% of employers can use.
H2b is the other visa type that is granted to the top ten% of companies.
It allows companies to hire people with a range of skills, including computer programming, engineering, science and management, and also includes the H-4 visa for professionals who are not considered experts in a particular field.
In addition, companies can hire H-8s, which allows them to hire foreign workers with experience in other industries.
There were around 2.5 million H-H2B visa holders in September and the numbers are growing.
The US is not the only country to have a significant shortage of H visas, with countries including Canada, Japan and South Korea also facing an oversupply of workers.
What’s the impact of the Brexit?
UK companies have been looking for