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    Proof that LHS coefficients have to = RHS coefficients

    Yes I meant for all x≠y. Thanks for your help.
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    Proof that LHS coefficients have to = RHS coefficients

    Sorry, x and y are just real numbers. Such as -12.12, 20, 5080.892, etc. This is not of the form (a)x + (b)y = (c)x + (d)y Unfortunately I still don't see what's wrong with the matrix that I typed up. Not that you're wrong, I just can't understand what you're saying because my maths...
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    Proof that LHS coefficients have to = RHS coefficients

    Hey everyone. Thanks for so much help on this question. I need to prove this as part of a broader question in an assignment on utility theory. The equation is this; aE[u(x)] + (1-a)E[u(y)] = (b+(1-b)a)E[u(x)] + (1-b-(1-b)a)E[u(y)] (1) Both sides are a gamble, E[u(G(x,y;a))] =...
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    Proof that LHS coefficients have to = RHS coefficients

    Hi, thank you for your suggestion. Are you sure that this is a proof? I'm not sure; [x y] = [x y], hence [a b] = [c d], hence a=c, b=d I mean it makes complete sense but it's a part of a much longer proof for an assignment so it's important that it's correct
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    Proof that LHS coefficients have to = RHS coefficients

    Homework Statement If; a*x + b*y = c*x + d*y x ≠ y a,b,c,d ≥ 0 Prove that; a=c b=d 2. The attempt at a solution I've been fiddling with this equation and have been getting nowhere.
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    Lamest News Article ever

    I don't empathize with the view that this is crap news. I found it very interesting.. wish more news was like this.
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    Telepathy experience

    I wouldn't recommend Radin's popular publications for those that are serious about learning the field. His scientific publications are fine, but the meta-analyses that he provides in his popular books are not. There are those that have a much wider search criteria (hence a larger N, perhaps...
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    Medical MRI Mind Reading claim (newspaper)

    Why are the images all fuzzy :s Why can't they just pull up the actual image that they're guessing why do they have to "recreate" it? Thanks.
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    Medical MRI Mind Reading claim (newspaper)

    http://www.smh.com.au/technology/sci-tech/mindreading-technology-reconstructs-videos-from-brain-20110923-1ko5s.html ::I can't locate the primary source:: Didn't want to put this in skepticism or another sub section.. too interesting. Move if wrong thanks.
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    Who won from the housing bubble?

    Mortgage brokers (the actual employees w/ limited liability) who were earning stupid commissions and those firms constructing and selling the original non-conforming retail mortgage backed securities without holding too much of them. Real estate agents maybe? (as someone above suggested)
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    What U.S. Economic Recovery? Five Destructive Myths

    From the quotation in the OP: I'm not sure what information this reporter was trying to convey when adding this sentence in during a discussion about youth unemployment. Those unemployed are unemployed partly because they're the most undesirable to the labour market (on average) in...
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    Potential MIT virus breakthrough?

    http://www.ll.mit.edu/news/DRACO.html Edit: Thanks to Ygggdrasil: Rider TH, Zook CE, Boettcher TL, Wick ST, Pancoast JS, et al. (2011) Broad-Spectrum Antiviral Therapeutics. PLoS ONE 6(7): e22572. doi:10.1371/journal.pone.0022572
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    Do you agree with multiculturalism?

    Can you please define what you mean by this damage that you perceive is occuring. Further, can you provide any evidence that this damage is actually happening and provide any evidence as to the extent of this damage. You did mention an inability to assimilate, so perhaps this is what you meant...
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    Near Death Experience: theoretical implications contingent upon validity of claim?

    I've done reading on this topic for about a year, a few years ago. Forgot most of the papers that I read. I recall the most interesting result from different studies being the claimed veridicality of NDEs.. Some cases seemed quite remarkable. Unfortunately I don't remember many references as it...
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    Most Frustrating, Embarrassing Brain Farts

    http://profile.ak.fbcdn.net/profile-ak-snc4/object2/1868/74/n190172509102_8960.jpg [Broken] [PLAIN]http://www.freewebs.com/fos08/Jokes/funny%20maths%201.JPG [Broken] [PLAIN][PLAIN]http://haha.nu/files/uploads/farm1.static.flickr.com/170/371722884_a8d1da8f44_o.gif [Broken]
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    George Anderson and Allison Dubois-are they frauds?

    What you said is completely false. http://www.stat.ucdavis.edu/~utts/air2.html [Broken] "empty" apparently means a p-value of 1.1^10E5.
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    The enormous mortgage-bond scandal

    Very interesting.
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    Solution to paid parental leave badness- economic crackpot or makes sense?

    Was thinking about the paid parental leave schemes. I have come under the impression that they are unfair (unfair under any system) as they stand now. The fact that it exists forces profit maximising firms to give lower wages to women - they incur a risk premium. This is because women, from...
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    Is economics ?

    Even if a million people started speculating on real estate, that doesn't mean that there will be any irrational decision making on behalf of the market participants (irrational under the economics definition). ]
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    Calculus and the Stock Market

    Yes, a risk premium for systematic risk. According to modern portfolio theory, inefficient portfolios will still have uncompensated risk due to lack of diversification, which the holder is not being compensated $$ for. This is putative in modern portfolio theory - CAPM, markowitz problems...
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    Calculus and the Stock Market

    Really? I read a paper that claimed to disprove the efficient market hypothesis by way of demonstrating that above market returns could be gained over a sufficient period of time using technical analysis. Unfortunately, this was a while ago and I forgot the link. I think it was in the wikipedia...
  22. I

    Human instincts

    The desire to self-maximize goals that have emotional weight? Wealth (some people), status (some people), free time, etc.
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    Desired Trade growth rate - please help?

    Does such a target exist? And do you mean growth in Net Exports (Xs - Ms, or Exports - Imports)?
  24. I

    Simple economics/business question

    yes, great point. Thanks! This is a question on my assignment, and it's worth "5 marks". It is very concerning that a 1-step question would be worth 5 marks? Hmm. Maybe i'll do it your way & the NPV formula way just to scrape marks incase they have some lame marking criteria. I'll also try to...
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    Simple economics/business question

    Oh.. so the 20% interest can be seen as something you can gain if you don't undertake the transaction! That would make it an NPV calculation?
  26. I

    Simple economics/business question

    Homework Statement You are employed by a business to evaluate a proposed 1-year investment project that will cost $10,000 today, but generate for your firm certain earnings of $15,000 at the end of the year. The investment is thought to be virtually risk-free, but others in your firm are...
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    Is economics ?

    I'll just add that what caused the GFC has absolutely ZERO to do with economic models such as IS-LM, Exogenous growth model, simple AD-AS model, etc. That's an important point. Although, it does have to do with continued financial deregulation, which many economists support. Many believed that...
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    Is economics ?

    Actually, such a monkey, if it did exist, and it did do what you're saying and was more profitable, is not in violation of economic theory. Efficient market hypothesis. Still, you would've needed a human to get the monkey's picks an create an idealized portfolio (minimized expected variance for...
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    Chi: A real force?

    Ok, well, I've just starting Bagua QiGong (I get trained for free by a family friend) and you CAN feel what these people are calling Chi! Although, for me to feel it requires tendonal/muscle/whatever stretching in the hand forearm area. Your hand starts to "pump", as if there's air rushing...
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    Near death out-of-body experiences

    Anesthesian awareness is surprisingly common. This does not imply that the person had their eyes open or was having an OBE during anesthesia. That is very rare. Or did this person report having an OBE?
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