Contents 1 Objections to the term 2 Usage in specific industries 2.1 Finance 2.2 Journalism 2.3 Insurance brokering 2.4 Law 2.5 Computer science 2.5.1 Reverse engineering 2.5.2 Computer security 3 Etymology 4 See also 5 References


Objections to the term[edit] There have been disputes about the use of the term for some decades, particularly in the legal and banking sectors. The term can be seen both as culturally insensitive, and an inappropriate reflection on Chinese culture and trade, which is now extensively integrated into the global market. In Peat, Marwick, Mitchell & Co. v. Superior Court (1988), Presiding Justice Harry W. Low, a Chinese American,[2] wrote a concurring opinion specifically in order "to express my profound objection to the use of this phrase in this context". He called the term a "piece of legal flotsam which should be emphatically abandoned", and suggested "ethics wall" as a more suitable alternative. He maintained that the "continued use of the term would be insensitive to the ethnic identity of the many persons of Chinese descent".[3][4] Alternative phrases include "screen",[5] "firewall", "cone of silence", and "ethical wall". "Screen" or the verb "to screen" is the preferred term of the American Bar Association Model Rules of Professional Conduct.[6][7][8][9]


Usage in specific industries[edit] Finance[edit] A Chinese wall is most commonly employed in investment banks, between the corporate-advisory area and the brokering department in order to separate those giving corporate advice on takeovers from those advising clients about buying shares.[1] The "wall" is thrown up to prevent leaks of corporate inside information, which could influence the advice given to clients making investments, and allow staff to take advantage of facts that are not yet known to the general public.[10][11] The phrase "already over the wall" is used by equity research personnel to refer to rank-and-file personnel who operate without the Chinese wall at all times. Examples include members of the Chinese wall department, most compliance personnel, attorneys and certain NYSE-licensed analysts. The term "over the wall" is used when an employee who is not normally privy to wall-guarded information somehow obtains sensitive information. Breaches considered semi-accidental were typically not met with punitive action during the heyday of the "dot-com" era. These and other instances involving conflicts of interest were rampant during this era. A major scandal was exposed when it was discovered that research analysts were encouraged to blatantly publish dishonest positive analyses on companies in which they, or related parties, owned shares, or on companies that depended on the investment banking departments of the same research firms. The U.S. government has since passed laws strengthening the Chinese wall such as Title V of the Sarbanes-Oxley Act in order to prevent such conflicts of interest. Chinese walls are also used in the corporate finance departments of the "Big Four" and other large accountancy and financial services firms. They are designed to insulate sensitive documentation from the wider firm in order to prevent conflicts. Journalism[edit] The term is used in journalism to describe the separation between the editorial and advertising arms. The Chinese wall is regarded as breached for "advertorial" projects. Insurance brokering[edit] The term is used in insurance brokering to describe the separation of claim handing where both parties to a claim (e.g. an airport and an airline) have insurance policies with the same brokerage. The claim handling process needs to be segregated within the organisation to avoid a conflict of interest. Law[edit] Chinese walls are used in law firms when one part of the firm representing a party on a deal or litigation is separated from another part of the firm with contrary interests or with confidential information from an adverse party. Under UK law, a firm may represent competing parties in a suit, but only in strictly defined situations and when individual fee earners do not act for both sides.[12] In the United States, the use of "Chinese Walls" is no longer permitted except within very narrow exceptions. The American Bar Association Model Rules of Professional Conduct (2004) state: "While lawyers are associated in a firm, none of them shall knowingly represent a client when any one of them practicing alone would be prohibited from doing so by Rules 1.7 or 1.9, unless the prohibition is based on a personal interest of the prohibited lawyer and does not present a significant risk of materially limiting the representation of the client by the remaining lawyers in the firm."[13] Although ABA rules are only advisory, most U.S. states have adopted them or have even stricter regulations in place. Computer science[edit] In computer science, the concept of a Chinese wall is used by both the operating system for computer security and the US judicial system for protection against copyright infringement. In computer security it concerns the software stability of the operating system. The same concept is involved in an important business matter concerning the licensing of each of a computer's many software and hardware components. Any hardware component that requires direct software interaction will have a license for itself and a license for its software "driver" running in the operating system. Reverse engineering software is a part of computer science that can involve writing a driver for a piece of hardware in order to enable it to work in an operating system unsupported by the manufacturer of the hardware, or to add functionality or increase the performance of its operations (not provided by the manufacturer) in the supported operating system, or to restore the usage of a piece of computer hardware for which the driver has disappeared altogether. A reverse engineered driver offers access to development, by persons outside the company that manufactured it, of the general hardware usage. Reverse engineering[edit] There is a case-law mechanism called "clean room design" that is employed to avoid copyright infringement when reverse engineering a proprietary driver. It involves two separate engineering groups separated by a Chinese wall. One group works with the hardware to reverse engineer what must be the original algorithms and only documents their findings. The other group writes the code, based only on that documentation. Once the new code begins to function with tests on the hardware, it is able to be refined and developed over time. This method insulates the new code from the old code, so that the reverse engineering is less likely to be considered by a jury as a derived work.[14][15] Computer security[edit] The basic model used to provide both privacy and integrity for data is the "Chinese Wall Model" or the "Brewer and Nash Model". It is a security model where read/write access to files is governed by membership of data in conflict-of-interest classes and datasets.


Etymology[edit] The origin of the phrase is the Great Wall of China.[16] The term was popularized in the United States following the stock market crash of 1929, when the U.S. government legislated information separation between investment bankers and brokerage firms, in order to limit the conflict of interest between objective company analysis and the desire for successful initial public offerings.[17] Rather than prohibiting one company from engaging in both businesses, the government permitted the implementation of Chinese wall procedures. A leading note on the subject published in 1980 in the University of Pennsylvania Law Review titled "The Chinese Wall Defense to Law-Firm Disqualification" perpetuated the use of the term.[18][3]


See also[edit] Brewer and Nash model Conflict of interest Insider trading Glass–Steagall Act Global Settlement Mad Men: "Chinese Wall"


References[edit] ^ a b Frier, Sarah (9 October 2014). "Goldman Sachs Turns to Digital Surveillance to Catch Rogue Bankers". Bloomberg Businessweek.  ^ "Hon. Harry W. Low (Ret.)". JAMS (alternative dispute resolution). Retrieved 17 October 2014.  ^ a b Peat, Marwick, Mitchell & Co. v. Superior Court, 200 Cal.App.3d 272, 293–294, 245 Cal.Rptr. 873, 887–888 (1988) ^ David Hricik (June 8, 2005). "Chinese Walls: Racist?". Legal Ethics Forum.  ^ See Martin v. MacDonald Estate (Gray) [1991] 1 WWR 705 at 715, as per Sopinka J. ^ "Model Rules of Professional Conduct", The ABA Model Rules define screening as "the isolation of a lawyer from any participation in a matter through the timely imposition of procedures within a firm that are reasonably adequate under the circumstances to protect information that the isolated lawyer is obligated to protect under these Rules or other law". Ibid. ^ "Archived copy". Archived from the original on 2010-10-30. Retrieved 2010-03-24.  ^ http://www.aallnet.org/products/pub_sp0809/pub_sp0809_Legal.pdf ^ Sharon D. Nelson; David K. Isom; John W. Simek (2006). Information Security for Lawyers and Law Firms. American Bar Association. pp. 25–. ISBN 978-1-59031-663-4. Retrieved 6 August 2012.  ^ "Chinese Wall Definition", Investopedia. ^ Luyendijk, Joris (3 February 2012), "Equity finance banker: 'Don't underestimate the Japanese banks", The Guardian, London, retrieved 7 February 2012  see Australian case ASIC v Citigroup Global Markets Australia Pty Ltd [2007] FCA 963, Federal Court (Australia) ^ Solicitors Regulation Authority. "Rule 3: Conflict of interests". SRA guidelines rule 3.  ^ McMullan, James M. "How to Avoid Conflicts". Americanbar.org. Retrieved 2015-04-09.  ^ Schwartz, Mathew (2001-11-12). "Reverse-Engineering". Computerworld. Retrieved 2013-06-23. To protect against charges of having simply (and illegally) copied IBM's BIOS, Phoenix reverse-engineered it using what's called a 'clean room,' or 'Chinese wall,' approach. First, a team of engineers studied the IBM BIOS—about 8KB of code—and described everything it did as completely as possible without using or referencing any actual code. Then Phoenix brought in a second team of programmers who had no prior knowledge of the IBM BIOS and had never seen its code. Working only from the first team's functional specifications, the second team wrote a new BIOS that operated as specified.  ^ Hogle, Sean (2008-10-23). "Clean Room Defeats Software Infringement Claim in U.S. Federal Court". Retrieved 2013-05-23. [...] dirty room reverse engineering should be done in conjunction with clean room development by using two physically and electronically isolated teams where one team does dirty room reverse engineering and the other does clean room development. If a dirty room team exists, the clean room engineers can write a description of the portion of the specification that needs elaboration or clarification. The dirty room engineers then use that request to create additional functional specifications or tests.  ^ Bryan A. Garner (2001). A Dictionary of Modern Legal Usage. Oxford University Press. p. 152. ISBN 978-0-19-514236-5.  ^ Investopedia. "The Chinese Wall Protects Against Conflicts Of Interest". Retrieved 13 February 2012.  ^ "The Chinese Wall Defense to Law-Firm Disqualification" (1980) 128 University of Pennsylvania Law Review. 677 v t e Conflict of interest Issues Chinese wall Conflict of interest in the healthcare industry Funding bias Insider trading Judicial disqualification Nepotism Regulatory capture Self-dealing Self-regulation State capture Shill Related AllTrials Arm's length principle Bias Business ethics Cochrane Corruption Cui bono Follow the money Legal ethics Lobbying Medical ethics cases Medical ghostwriter Moral hazard Pharmaceutical marketing Pharmaceutical sales representative Pharmacovigilance Political ethics Revolving door Sponsorship of continuing medical education Writers Michael Davis Ben Goldacre Sheldon Krimsky Leemon McHenry Wayne Norman Incidents Conflicts of interest on Wikipedia Bell Pottinger Church of Scientology Ken Sunshine Orangemoody The Hunting Ground US Congressional staff Wiki-PR Study 329 Law Nemo iudex in causa sua R v Bow Street Metropolitan Stipendiary Magistrate, ex parte Pinochet (No 2) R v Neil R v Sussex Justices, ex p McCarthy Media Bad Pharma Big Pharma Inside Job Side Effects Who Killed the Electric Car? Taken for a Ride Conflict of interest (category) Conflicts of interest on Wikipedia (category) Retrieved from "https://en.wikipedia.org/w/index.php?title=Chinese_wall&oldid=818781369" Categories: Investment bankingInformal legal terminologyJournalism standardsConflict of interest mitigationData securityMetaphors referring to objectsReverse engineering


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