Throughout the “sh*t hitting the fan” events of last fall, and the subsequent policy response, we’ve listened intently on what this Canadian had to say. The picture he paints today is one of bearish conviction. That’s exactly the reason he’s come under recent criticism as his ilk of ivory tower economists have started calling an end to this recession.

Though we don’t think he has anything to prove, he released a special report reaffirming his key points. You can read it in full here. But if you don’t have the time to peruse the twenty-two page (slightly wonkish) document, we’ve broken down the basic takeaway for you.

The equity markets have moved too far, too fast, and a correction is coming. Rather than buy into this rally, you should look at commodities. That’s because David believes that since 2001commodities took off on a secular bull market run.

Also, rather than hold US dollars, Rosie bets that the Canadian buck is a safer bet due to Canada’s smaller national debt (26% of GDP vs. 62% in the US), smaller budget deficit (-3.4% of GDP vs. -11.2% in the US), stronger banking sector (no Canadian bank needed a bailout), lower unemployment, and an economy more reliant on commodity exports like lumber, oil, natural gas and precious metals.

But the scariest–for holders of US dollars—forecast Rosie makes is that the US has yet to use a power policy tool: the devaluing of the greenback.

As Obama continues to take pages out of FDR’s playbook, he’s yet to devalue the dollar as FDR did in 1933. Rosenberg doesn’t say that the US policy wizards will directly devalue the dollar. Rather, he thinks it will happen by the expansion of the Fed’s balance sheet and the creation of freshly printed dollars.

We think he’s dead on about this call. The US’s “strong dollar” policy has become the latest oxymoron to enter the American vernacular. There is only one direction the value of the US dollar is going over the long-term—down.

Where exactly should you invest amidst this economic malaise? Here are the seven places to park your cash. Not surprisingly, our favorite precious metal tops the list.

1.) Gold

2.) Commodities

3.) The Canadian dollar

4.) Resource sectors of the stock market

5.) US sectors that have high foreign exposure (materials, tech, staples, healthcare)

6.) Canadian sectors that benefit from lower import costs (consumer stocks) but lose export competitiveness (manufacturers)

7.) Canadian bonds (a higher Canadian dollar will keep inflation low, hence reinforcing positive fixed income returns)

That’s a very simple statement, but it’s backed by three powerful points:

• Commodities tend to do well when more popular investments (with retail investors) are doing poorly, and when economic conditions are less than ideal.

• When the typical economic underpinnings are at play, a “Secular Bull Market” for commodities tends to last for about 17 years. And right now, the underpinnings are far from typical – and may even be exemplary, meaning this bull-market run could last a lot longer than the norm.

• And last, but not least, we’re only about nine years into this commodities bull market, meaning that there’s probably a lot more room to run – maybe eight years, and very like even more.

Amazingly, this powerful notion of the “Secular Market Cycle” – despite its tremendous profit potential – is largely unknown to the investment masses, and is rarely discussed by the mainstream business news media. Indeed, it’s so taken for granted that it’s almost a market secret…

If you’re a long-term investor, however, you’ll ultimately realize it’s one of the most lucrative strategies you have in your investing arsenal. And most amazing of all is that it’s easy to understand, easy to deploy and easy to profit from.

Let me explain.

Investing in Commodities & The Secret of the Secular Market Cycle

Why is this commodity investing strategy so special? Well, with a finite time to invest for your retirement, it’s crucial to recognize and understand what we like to refer to as the “Secular Market Cycle,” or “Secular Cycle,” for short.

As the chart shows, a Secular Cycle, from peak to trough, typically lasts about 17 to 20 years on average (the period depicted by the chart ends in 2004, but still perfectly illustrates our concept).

And there are essentially two types of cycles:

• The “Secular Bull Cycle,” during which regular stocks increase in value, and have their Price/Earnings (P/E) ratios (earnings multiples) expand. That means that stocks get more expensive.

• And the “Secular Bear Cycle,” during which stocks tend to experience a decline in both price and valuation, with P/Es that contract. At best, stock prices move sideways over an extended period, but still see their P/E multiples shrink, since corporate earnings are growing at a time when stock prices are stagnant.

For investors, one key problem is that an overall “Secular Cycle,” from trough to peak and back to trough, can take 35 years. That’s a big chunk of a person’s wage-earning years, meaning there’s little room for missteps.

Now, there’s no point in fighting a secular market trend – not if you want your investments to grow.

So it’s essential to determine where we are in the cycle, because that will dictate expected returns over the following decade or two. And since most people only spend about 40 years of their lives investing for retirement, not knowing about the “Secular Cycle” – much less where we are right now in the cycle – leads to guesswork, mistakes and losses, instead of the clear planning that will generate the best investment decisions and, ultimately, the biggest profits.

The last commodity cycle ended around 1980. Essentially, a prolonged period of high commodity prices encouraged producers to over-develop their resources. Demand never fell off. Instead, there was a massive oversupply, and the commodities party eventually ended. Prices got pushed off a cliff, so the entire sector became lean in a hurry as profit margins imploded.

We now know how long a typical Secular Bull or Bear market will last years. We also know that the last Secular Commodity Bull was launched roughly around 2000. That allows us to conclude that we’ve easily got between eight and 11 years to go before supply catches up with the burgeoning global demand that we’re seeing right now.

Investing in Commodities – Profit Plays to Consider Now

With class over, it’s time to put your newfound insights to work, searching out ways to earn the outsized profits that will be available from the Secular Bull Market for investing in commodities.

If you prefer individual stocks, you have to get to know BHP Billiton Ltd. ADR (NYSE:BHP). This $140 billion resources behemoth is the largest diversified mining company on earth. With an enviable balance sheet and cash flow, this producer of base metals, precious metals, diamonds and energy is way ahead of the pack. With a current P/E of 11.66, the stock isn’t bargain-basement cheap, but it still represents a good value. Besides, this is a stock that you’ll want to hold all the way to the very end of the Secular Cycle.

Exchange-traded funds (ETFs) and exchange-traded notes (ETNs), on the other hand, provide investors with more direct exposure to commodity prices, as opposed to exposure to the stocks of the commodity-producing companies.

Finally, you’d be wise to get some gold exposure, too – gold miners can also be an excellent hedge against inflationary pressures.

In this case, the Market Vectors Gold Miners ETF (NYSE: GDX) – composed chiefly of major gold miners – offers both company and geographical diversification, while including substantial leverage to the price of gold. GDX is based on the AMEX Gold BUGS Index (HUI), which represents a portfolio of 15 major gold mining companies that do not hedge their gold production beyond a year and a half.

In the next couple of years, as U.S. and overseas economies recover, commodities producers will pay the price for recent major cuts in production, development and exploration – discovering it will be very tough to boost output even as global demand soars.

Shrewd investors will reap the benefit of those decisions: Those shortages will persist, providing quite a tailwind for soaring prices.

Just make sure that your sails are fully deployed.

The bottom line: As you go about rebalancing your portfolio – or continue rebuilding it as a result of the financial-crisis carnage – make sure to include room for a solid natural resources allocation.

Source: Investing in Commodities: How to Buy Gold During Secular Market Cycles