They say that one should avoid speaking of politics and religion in polite conversation. Ostensibly this is because people hold such strong opinions on these topics, and understandably avoidance is a wise course of action if one wishes to avoid confrontation. To this list I would add investment philosophy, as this too is a highly polarising topic which seems to engender very strong emotions.
As an advocate of the long term approach I am certainly well aware of this, particularly in an age where most are more concerned with speculation and short term gains. Nevertheless, I believe the best one can do is take an evidence based approach and let the facts speak for themselves. To that end, this week I want to tackle one of the most credible arguments against long term investing: the Japanese experience. While many criticisms against long term investing are easily dismissed, the performance of the Japanese market over the past 20 years is much more difficult to ignore: since 1989 the Japanese market has dropped by approximately 69%.

Clearly this seems to be a terrible outcome for long term investors, but we need to not only contextualise this performance but also understand that long term investing, contrary to popular belief, involves far more than simply 'buy and hold'. If we acknowledge this and introduce even some very basic investment techniques the result is one which may surprise you.
In a very small minority
Before we get into specifics, the first point to make is that the Japanese market is the only example of a major industrialised nation to exhibit such poor long term performance over the past couple of decades. I would argue if the long term approach has been successful in the vast majority of cases, it can hardly be labelled as ineffective. If you had a technical indicator that was correct even 70% of the time it would be considered very powerful indeed. The fact is that if the long term investing approach was completely ineffective, you would imagine that there would be a long list of examples of its failure, not just a small handful.
(I won't discuss the other oft quoted examples, such as the oil crisis of the 70's or the '87 crash as none are as severe as the Japanese example and furthermore the arguments I will discuss here are equally relevant .)
Inflation, or the lack of
Rather than just chalk up the performance of the Japanese market as the exception that proves the rule, I would go a step further and suggest that things aren't nearly as bad as they appear. For starters Japan has barely seen any inflation over the past 20 years, and indeed suffered substantial deflation during the 'lost decade'. As most would know, inflation acts to reduce the spending power of money. The flip side of course is that deflation will increase the value of the currency. So whereas the true or 'real' value of money has decreased for most other nations, in Japan it has essentially remained the same.
This means that in real terms the decrease in market value is substantially less than would have otherwise been the case in an inflationary environment. More importantly, it means that if indeed any gains were made over the period, they would not have been lessened by inflation. And as we shall see, gains were indeed possible.
Measuring from the peak
A much more important factor is that we are almost exactly 20 years on from the absolute height of the Japanese market. The 20 years preceding the 1989 top saw the Japanese market rise a staggering 1588% as it underwent a massive transformation to become the second largest economy in the world. Towards the end of this time, fantastic bubbles developed in asset markets which significantly over inflated prices. The point is that if you buy at the height of a bubble, especially one as staggeringly large as in Japan, it will always take you a long time to recoup your losses (especially if you just sit on your hands and wait). Clearly, it doesn't make sense to only choose the summit of market bubbles as the starting point for measuring performance.
If instead you missed the absolute high, which the majority of consistent long term buyers would have, the situation becomes much less disappointing. If you had invested only 3 years after the high you would now be sitting at 33% loss. Of course that's still pretty poor, but nevertheless it is a significant improvement. Move further away from the market peak and the picture continues to improve. Indeed, you could even nominate a number of periods over the past few decades which would have led to attractive long term gains.
As you can see, a retrospective approach will allow you to paint the picture as you choose. With the benefit of hindsight you can make even the Japanese market seem reasonably rewarding! I acknowledge this, but I want to ensure that readers understand that the reverse is true; that is, by choosing the very top of the largest asset bubble in the modern era you can easily make things seem absolutely terrible.
Don't set and forget
Another point to acknowledge is that the long term investor does not simply buy a bunch of shares at some specific point and then sit on them indefinitely. As income is saved, investors add to positions and build their portfolios. This has the unintended (yet beneficial) effect of dollar cost averaging. I have already written extensively on this, but I do want to remind readers that I don't advocate dollar cost averaging as a strategy in and of itself. Rather it is an unavoidable consequence of continuing to build a portfolio. A consequence that helps smooth out volatility and reduce the reliance on timing.
Consider the example where an investor has the terrible misfortune of investing $2000 into the Japanese market at the absolute high of the 1989 boom. However, if this investor continues to add an additional $2000 each and every year after this their return on investment comes in at -32%. Again, that's nothing to get excited about, but it does represent a substantial improvement on an otherwise near 70% loss.
Dividends make a BIG difference
Of course to this point, while we have significantly reduced our losses we are nevertheless well and truly in the red. What we have failed to do of course is include dividends and the power of compounding. Consider the difference between the Topix and Topix accumulation index (which factors in the effect of dividend reinvestment):

As you can see, even a seemingly low dividend yield of approximately 3.5% pa can lead to a substantial difference over the long term. Again we still remain in the red, but the losses have nearly halved when dividends have been reinvested. However when you combine the effects of regular additional contributions with dividend reinvestment, something truly remarkable happens.
To continue with our previous example, let's say that you invest $2000 into the Japanese market at the very height of the bubble. However this time you not only continue to add an additional $2000 each year, but you also reinvest your dividends. Amazingly, even though the Topix index has declined by close to 70% in that time, in this example you are today down only 3.6% on your invested funds! And all of this in a virtually inflation free environment! Essentially, although you have failed to grow your capital, you have nevertheless managed to preserve your wealth, something that you achieved in the worst market of the modern era with nothing more advanced than investing in an index, reinvesting dividends and making regular contributions. Personally, I find that quite amazing.

The GFC
What is also amazing is that you have to remember that the Japanese market not only suffered truly horrendous losses following the 1989 high, but of course was also affected by the Global Financial Crisis (in fact, it was hit harder than the US and Australian markets, declining by close to 60% between 2007 and early 2009). As you can see in the chart above, prior to the GFC the portfolio was actually doing very well indeed; at its height enjoying a healthy 69% return on invested funds. Again, this is truly remarkable when you consider that the initial investment was made at the height of the market in 1989.
Diversify to increase gains
Additionally, one should also consider the value of diversification into other asset classes and off shore markets. Diversification is usually seen as something that will reduce risk at the cost of also reducing gains, which is indeed often the case. However, if what you diversify into performs better than your existing assets you will actually see a better overall performance. Now of course the point of this article is to discuss the Japanese experience, but the fact is that diversifying across markets and asset classes is what one should do anyway as part of a sensible investment strategy. In this case, it is something that would have significantly improved performance.
It can very clearly be demonstrated that Japanese investors could have seen attractive returns by simply investing a portion of their funds offshore.
More than Buy and Hold
The final point to make, and one that is usually overlooked by cynics, is that long term investing does not necessarily mean simply buy and hold, and it does not infer that you must be resign yourself to achieving the market average. As a long term investor I regularly review my positions, reweight my portfolio and employ risk mitigation techniques. Furthermore, as I have previously shown, a focus on dividend paying industrial style businesses has historically led to a significant outperformance of the broader market indices. Had we conducted the previous example using a diversified mix of the better Japanese stocks we would have actually seen a very attractive return over the same period. For example over the past 20 years shares in Canon have seen a near five-fold increase in value.
Summary
So it is really undeniable that a well managed portfolio of quality industrial style stocks, with dividends reinvested, regular additional contributions, and with even a small amount of funds diversified into offshore markets, would have actually led to very reasonable long term returns, and all in an inflation free environment. And that's even accounting for the fact that you initiated the investment strategy at one of the worst possible points in history. Truly remarkable.
So in conclusion, cynics should be careful not to quote the Japanese market as an example of why long term investing doesn't work. It has undoubtedly been a difficult period for Japanese investors and clearly things could have been much better, but that doesn't mean we should completely discount an otherwise very powerful and successful investment philosophy. Simply referring to a long term chart of the Nikkei or Topix as 'proof' that long term investing doesn't work is overly simplistic and ignores the most basic principles of sensible investing.
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