In his 2012 report, Barclays' Andrew Lawrence and his team wrote that this is because "the world’s tallest buildings are simply the edifice of a broader skyscraper building boom, reflecting a widespread misallocation of capital and an impending economic correction."The article notes that both China is working on a super-sky scraper ("Sky City"), and that Saudi Arabia has announced intentions to build a super-sky scraper ("Kingdom Tower") that will be the tallest in the world when constructed.
But it isn't just the world's tallest building we should be looking at. Lawrence said it's also important to look at the number of skyscrapers being built and their geographic profile. This is because the tallest buildings "rarely stand alone."
With this in mind, investors should watch the building booms in China, India, and Saudi Arabia.
I would also note the continued risks of the Chinese housing bubble. The Diplomat reports:
Residential real estate investment accounts for the majority of China’s real estate market. However, recent reports have revealed that Chinese property prices, particularly in second- and third-tier cities, are falling. Cities such as Hangzhou and Changsha face burgeoning swaths of empty apartment units, and developers have slashed prices in an attempt to lure home buyers. These developers are finding that the price elasticity of demand for residential real estate in China is inelastic: once consumers stop buying, deep discounts are ineffective in drawing them back. Mass market residential property purchases represent much of this decline. Most of those who purchase mass market apartments are middle class, and have invested most of their savings in their homes as primary residences (particularly since purchasing apartments for investment purposes was curbed in 2011).
At the other end of the spectrum are the high-net-worth individuals, those with more than 10 million RMB (about $1.6 million). Their number is rapidly approaching 1 million, or 0.07 percent of the population, according to Bain & Company, and they invest in high end apartments largely in first-tier cities in China, and in homes and apartments in urban and suburban areas abroad. As with all Chinese citizens, wealthy individuals have few alternative options for investing their money, but they also invest abroad to take money out of China, particularly to destinations in which they wish to attend university or live. High-net-worth individuals are more discriminating in their acquisitions and often seek luxury residences.
The two markets have different characteristics, and government policies have aggravated the disparities. Demand-side policies aimed at lowering home prices have reduced sales of mass market apartments, particularly outside of first-tier cities, while supply-side indicators, such as real estate investment and construction, have remained strong (although new housing starts have declined). Conversely, construction of luxury apartments has declined due to policy restrictions while demand for these properties, mainly in first-tier cities, has remained high. Therefore, what we see is a relatively efficient market for luxury residences and a large surplus of properties in the mass market category, which is pulling down property values within that market. Middle class Chinese, then, will experience a decline in wealth while high-net-worth Chinese suffer little in this market (ceteris paribus), sharpening economic disparities between the middle and upper classes.