As always, PortfolioConstruction Forum Symposium is the highlight of my year in terms of professional development. This year's was probably the best to date. Here are the key takeouts I sent to my clients.

Symposium 2015 featured 20+ leading investment professionals arguing their best, high conviction ideas about the markets, strategies and investing.

Divergences in global economic and policy outcomes have important implications for markets around the world. This policy divergence has directly influenced asset prices across the globe with implications for stocks, bonds and currency markets.

China now has to deal with a massive excess supply of property… This is unlikely to be “just another property cycle” in China. The bursting of China’s property bubble poses a major risk to both the country’s stability and the global economy.

If you have a DIMS license, you are required to stress test portfolios. Here are two practical approaches to stress testing, and the strengths and weaknesses of each to help you build your approach to portfolio stress testing.

Each of our Symposium 2015 DDF presenters gave a 2-minute overview of their high conviction portfolio construction strategy idea.

Rather than large, liquid companies with significant global revenue bases which dominate benchmark allocations, investors should seek exposure to India’s surging local demand…

When combining managers together to form a multi-manager global equity portfolio, investors should still aim to keep active share relatively high.

uilding NZ fixed interest portfolios is harder than it has ever been… Portfolios need to be constructed for the specific needs of clients, which will typically be a combination of liquidity, income, quality, and diversification

At the coal face, engagement between company boards and institutional shareholders can achieve meaningful improvements for all investors. Perseverance and commitment are essential.

The diverse range of quality small cap companies with recurring earnings and growing dividend yields offer investors essential risk diversification and should be incorporated into portfolios.

Investors will need to hunt out alternative sources of yield to meet their investment objectives. All is not lost. Yield can be preserved in a low yield world but investors need to be aware of the risks and trade-offs.

Each panelist outlined which high conviction markets idea from Symposium 2015 day one they agreed with most, and which one they agreed with least.

What return premia - if any - are attached to different types of investment risk? And just how reliable are those premia are in practice? Can the risks be diversified?

It’s possible, or more likely probable, that for future generations, our money will run out before our body does. This means that our historical models of accumulation and decumulation will not work for future generations.

As we all brace for lift-off in the key US Federal funds rate, a robust, top-down macro perspective will be even more critical to the success of portfolios than ever.

Our Symposium 2015 debated their high conviction ideas on the drivers of, and medium-term outlook for, the New Zealand economy.

Economic growth has had a lot of bad press recently. But on closer inspection, the objections typically leveled against growth do not stand up to empirical scrutiny.

NZ has plummeted down the global income per capita rankings from third in the 1950s to 23rd in 2015. Successive governments have done little to reverse the decline. Why have we failed to regain our position?

Our Symposium 2015 Faculty debated their high conviction ideas on the drivers of, and medium-term (two to three year) outlook for the markets.

Despite a genuine desire to invest in New Zealand on behalf of a substantial Australian superannuation fund, after several years of trying, no money has been invested.

For investors, one of the most important events of 2014 was the dramatic collapse in the oil price. The long-term equilibrium price is now likely to be lower. Overall, portfolios must be repositioned for increased volatility.

Returns in defensive equity yield and income sectors have been outsized as bond yields have fallen. Growth sectors have underperformed. But globally, technology shares are cheap on a relative basis.

World-wide low interest rates are not a temporary phenomenon. The world has changed and it is highly likely that the current low rate environment will be with us for decades. Getting used to low rates will be a critical adjustment for all investors to make in the coming years.

Slow growth is an old story. The new story is that world is finally beginning to re-balance - a process that unfortunately will take another 20 years. Well-intended policies are causing bubbles and distortions to asset prices.

The outlook for the global economy is unambiguously positive. At long last, all regional economic cylinders are firing in unison and secular stagnation is yesterday's story.

PortfolioConstruction Forum Publisher and Symposium NZ 2015 Moderator, Graham Rich, opened Symposium NZ 2015 in his usual thought-provoking (and entertaining) way, highlighting key issues to consider over the jam-packed, marathon program.