tl;dr The United States and the European Union isn't even remotely comparable.<p>Private investment in the European Union is just a fraction of what's seen in the United States. Investment across country borders, especially in Software, is practically non-existent.<p>Businesses in Europe often prefer to work with local companies within their own country, so the "common market" doesn’t operate as seamlessly as it does in the US. You can't scale to as many users as you could in the US.<p>Hiring across country borders is still pretty rare, except when companies set up subsidiaries to tap into cheaper labor markets. Oh, and each country has it's own complicated labor code. Complicating matters further, some countries have insane job-protection law (i.e. France) making it less attractive to hire there to begin with. Contrast this with the United States where a company operating out of California can easily (or more easily) hire in Minneapolis or any other US state.<p>Regulations in the United States can also be quite a headache. The main difference is that in the EU, you’re dealing with multiple legislative environments, which adds another layer of complexity. It's not that the regulations themselves are so terrible, but the variety across countries makes it more complicated.<p>Taxes are significantly higher in the EU. For example, in Lithuania, 39.5% is deducted from your salary—this includes 20% income tax, 6.98% for mandatory health insurance, and 12.52% for social insurance and pensions. On top of that, there's a 21% value-added tax (VAT) on all purchases. So, if you earn €5,000 per month, you end up with just €2,390 to spend.<p>Utilities are also more expensive than in the United States. In Lithuania, I pay €0.25 per kWh for electricity. Gasoline costs €1.4 per liter, which is roughly $5.67 per gallon. For businesses, it is even worse; Lithuania is considered to be one of the cheaper countries.<p>Software-based products mainly took off in the United States, creating a large talent pool and a high level of maturity in the field. In contrast, in many EU countries, people either concentrated on industrial applications or only began focusing on software engineering in the past 20 years.