Google is the big, intrusive company that we welcome into our lives with open arms because of the way it helps us through our daily lives. Will a ruling from the US say it's gone too far?

When a company gets as big and as integrated into our lives as Google, how far can it intrude into our personal lives before we draw the line between harm and inconvenience?

The US Department of Justice alleges that Google is cutting search engine competitors out of the market.

We use it to ask our most pressing questions about life and the universe, get directions to the latest pizza joint...

... and, of course, we can use it to find the latest episode of The Detail.

We also give it a great many details about our personal life - where we live, what we buy, and where we browse.

Google is so ubiquitous in so many places around the world, it's small wonder an anti-trust trial in the US could have big implications for its use in Aotearoa.

The US Department of Justice (DOJ) claims Google acts as a monopoly, illegally paying billions of dollars to Apple, Samsung, LG and others to make Google the default search engine on phones and computers.

The DOJ says this cuts other players, mainly Microsoft Bing and DuckDuckGo, out of the market.

Its anti-trust case was launched against the search engine giant in 2020, and oral arguments have just wrapped up. Next year, both sides will have to present written arguments, and in May, there will be closing arguments before a decision is made.

Most of the court hearings over the last few months have been playing out behind closed doors, as Google successfully argued making it public could disclose trade secrets.

But what might happen when the case is over?

Auckland University professor of experimental economics Ananish Chaudhuri says while it's speculative, the DOJ could essentially break up Google into two companies.

One option, Chaudhuri says, is the creation of one company concerned with Google's search engine, and another company that manages the advertisements that appear in searches.

"I think that's unlikely.

"The second possibility ... the government could say, 'we'll let Google continue as a monopoly but it will be regulated to some extent ... they cannot charge whatever price they wish to charge' ... some government agency will have oversight over what price is being charged."

There can be no argument that Google is on top of the world, with 88 percent of internet searches undertaken using its search engine.

"Bing has seven percent," says Chaudhuri, "Yahoo has less than four percent, and DuckDuckGo, which is a relatively new entrant, has less than two percent."…

Go to this episode on rnz.co.nz for more details