Guy Rolnik (Hebrew: גיא רולניק; born September 2, 1968) is an Israeli journalist, executive, entrepreneur, and a clinical professor at the University of Chicago.

Rolnik is arguably the most influential business and economics journalist in Israel, promoting open, competitive markets with strong social safety net and is considered a leader in the fight against corruption.

He initiated many investigative stories into economic and social issues and published articles that exposed the damages that strong and well-connected entities brought upon weaker groups from the socio-economic periphery.

Haaretz newspaper and Guy Rolnik, the Editor-in-Chief of TheMarker, did not bow down to the threats made by powerful businesspeople and to ad boycotts and were relentless in their work.

"In his writing and work as the Editor-in-Chief of TheMarker, Rolnik proved that brave journalism, based on independent thinking and free of interests, can bring about changes in society and the economy.

For the first time in the history of the Israeli financial press, one newspaper headed by one person had enormous effect on economic policy and, more precisely, on the sentiment it takes to cause change.” Jan 2014 – Fellow at the advanced leadership Initiative, Harvard.

He led a series of informative journalistic campaigns, mainly regarding structural reforms, fostering of competition and reducing concentration in the business and capital sectors.

Beginning in 2005, Rolnik and his team set out on an informative campaign that included hundreds of columns, stories and features regarding the perils of the concentration of economic and political power in few hands in the Israeli economy and the danger is posed to competitiveness, prices, innovation and democracy.

Pursuant to this campaign, in October 2010 Prime Minister Benjamin Netanyahu and Bank of Israel's Governor Stanley Fischer set up a committee tasked with formulating recommendations for increasing competitiveness and decreasing concentration in the Israeli business sector.

In January 2011 Rolnik launched the "Israel 2021 Initiative", aimed at changing the Israeli public discourse, at the time dominated by political and security issues.

In these times, as it turns out how tycoons exploit us and pyramidal business conglomerates gobble our assets, and how government officials stand by them and not by us, Rolnik and his team are a courageous beacon of light in a media world bent by vested interests and their controlling shareholders.

Rolnik’s and TheMarker’s campaigns yielded at least seven major economic reforms: (1) the implementation of the recommendations of the Bejski Commission – ending banks’ control of capital markets (2) the introduction of competition in the cellular market (3) increasing taxes on Israel's natural resources (The Sheshinski Committee) (4) preventing the bailout of tycoons with Israeli taxpayers and savers money following the 2008 financial crisis (5) the creation of Israel's Anti-Concentration Committee (6) the creation of the Strum Committee for the introduction of competition in the banking sector, and (7) exposing the corruption in both the IDB and Bank Hapoalim groups during the reign of the Dankner family, which led to their indictments, convictions and removal from their positions.

Rolnik has been especially good at publishing investigative pieces on what he calls the 'Israeli oligarchs,' a small group of billionaires and their families who control much of the national economy".

[21] In March 2011 Daniel Doron, the director of the Israel Center for Social and Economic Progress, wrote in The Jerusalem Post: "The strong bond between government and capital that developed here has a third partner, the media.

[22] In October 2011 Israel's Channel 2 aired a program dedicated to the previous Jewish year's main events, the major one being the summer's social protests.

The presenter said: “… the hundreds of thousands that took to the streets in the summer strengthened the ideological plight of TheMarker and its Editor-in-Chief, Guy Rolnik, against the concentration of economic power in the hands of few and against the nation's tycoons.

"[13] In December 2013 “The 7th eye”, wrote: “TheMarker, led by Guy Rolnik turned economic concentration to a central part of the Israeli public discourse.

A rare example, not only in Israel, of a media outlet that succeeds through an aggressive, versatile and creative campaign to significantly influence the public agenda to such an extent that the parliament adopts a bill that will bring about dramatic changes to the structure of the economy”.

Four years ago the newspaper went on a relentless, uncompromising battle against economic concentration – a subject that was marginal or totally denied – until TheMarker started its efforts in a consistent and aggressive campaign that included hundreds of editorials and features.

[25] In January 2014, Professor Steven Davidoff at the University of California, Berkeley's school of law and columnist for The New York Times analyzed the process that influenced Israeli government and lawmakers to formulate and approve the dramatic reform in the economy to break concentration.

The committee was advised by Lucian Bebchuk, a Harvard Law professor and occasional contributor to DealBook, who strongly advocated breaking up the more significant pyramids.

The committee recommended the breakup of the pyramids in the hope that if they were destroyed, prices would come down in the wake of greater competition, helping the average Israeli and addressing income inequality”.

[26] In March 2015, journalist and media critic Michael Massing highlighted the work done by TheMarker and Rolnik in an essay “How to fix American Journalism” that appeared in the special issue of The Nation magazine for its 150 years celebration.

ProPublica, the prime investigative site on the web, has done impressive reporting on a number of important subjects, including fracking and the secret Fed tapes, but in general it remains wedded to a traditional narrow-focus approach”.