New Zealand’s long pursuit of a free trade deal with the European Union has moved closer to reality, with the EU’s Foreign Affairs Council approving the launch of negotiations.

In a world-first, University of Canterbury Hydrological and Ecological Engineering researchers have filed a patent application for their invention the Storminator™, which could be exactly the weapon that our waterways need.

Four twisting glass towers, a concept French studio XTU Architects has developed for construction  in Hangzhou, China, featuring facades covered in panels impregnated with micro-algae.

Chronic skills shortages and other capacity constraints in the construction industry have forced the Treasury to halve its forecast rate of progress on the government’s KiwiBuild affordable housing programme.

Where forecasts before Christmas assumed around $5 billion of KiwiBuild-induced “additional nominal residential investment” over the next five years, the forecast is now for just $2.5 billion over that period.

“A greater proportion is assumed to occur outside the forecast period," says commentary from the Treasury in its Budget Fiscal and Economic Update (BEFU), which is published with the Budget.

Finance Minister Grant Robertson told journalists there was no change to the government’s plan to build 100,000 affordable homes within a 10 year period.

The new forecast makes assumptions about how much extra activity the KiwiBuild scheme will induce and about the impact of government policies intended to alleviate construction sector constraints. These include plans to bring migrant construction workers to New Zealand under a special KiwiBuild visa.

“There remains a high degree of uncertainty about the impact that these policies may have,” Treasury said. “Growth in real residential investment may be weaker than forecast if capacity constraints are more binding than assumed.”

That could also lead to KiwiBuild substituting for “other developments that would otherwise have taken place”.

However, the Budget economic forecasts are bullish about the economic outlook over the next five years, driven by an expectation that immigration will fall by less than previously assumed, prices for New Zealand’s exports will remain strong, and the global economy will continue to grow at a robust rate.

On top of that, the surge in government spending caused by the previously announced July 1 Families Package and other initiatives announced in the Budget are expected to underpin average annual growth of 2.9 percent over the next five years.

The forecasts expect real (inflation-adjusted) growth in gross domestic product in the year to June 2019 of 3.3 percent, followed by 3.4 percent in the year to June 2020, and then falling to 2.4 percent and 2.5 percent in the two following years.

These increases are one of the reasons for higher tax revenue forecasts over the next five years, which underpin a larger government spending programme while allowing it to declare Budget surpluses and meet its debt targets.

Inflation stays at or below 2 percent a year throughout the five-year forecast, lower than forecast average wage increases. Compared to the 1.6 percent wage rise in the year to June last year, the June 2018 annual increase in wages is forecast at 3.2 percent and averages 3.1 percent over the next five years.

The current account deficit remains stable at around 3 percent of GDP, unemployment drifts down close to 4 percent by 2020 and stays there, while participation rates in the workforce remain high by world standards at close to 71 percent over the whole five years.

While business investment takes a hit in the year ahead, with a forecast increase of just 1.4 percent, it recovers to a 5 percent increase in 2020, reflecting the Treasury’s judgement that the current slump in business confidence will be short-lived.

However, it notes that “it is possible that uncertainty around any other reforms and their combined impact leads to more cautious behaviour” by investors.

However, much rests on the assumption that very current high levels of net immigration – 68,000 in the year to March – will fall to 25,000 by 2022. That is 10,000 higher than previous Treasury estimates, reflecting the agency’s decision to reset its migration forecasting to mirror the reality of recent history.

However, it also publishes forecasts from an external agency, Sense Partners, whose forecast suggests net immigration could settle around 40,000 a year, based on combining five different forecasting models.

That would raise economic growth rates, increase employment, worsen housing shortages, probably spark higher house price inflation and is assumed to lead to higher interest rates.

A high-immigration scenario published in the BEFU raises the average growth rate over the next five years to 3.1 percent, produces a larger budget surplus than is officially forecast in the Budget, and would get the government to its Crown debt reduction target a year early.

Also published is a scenario in which global trade protectionism increases beyond levels already accounted for, knocking the growth rate over the next five years down to 2.7 percent a year, producing lower surpluses and causing the government to miss its 2022 target to reduce net Crown debt to 20 percent of GDP by 1.4 percentage points.

Top Hawke’s Bay apprentice Matthew Macaulay is a bright spark in the trades.  From Hastings, Matt qualified as a horticulturist and then as a boilermaker before deciding to pursue an electrical engineering apprenticeship, studying at EIT.

New Zealand Trade and Enterprise is in the market for a budgeting and forecasting tool to replace its current excel-based solution writes Sarah Putt for Computerworld.

In early 2019, University of Canterbury researchers will be part of an international effort to explore one of the coldest, harshest and most remote locations in the world: the Weddell Sea off Antarctica.

So much to do so little time to do it in?  The real meaning of this is - you need a break!  Maybe its The Time Warp of Castro's Cuba, or it could be the Once-in-a-decade OBERAMMERGAU play but  if you can't wait till 2020 then there's Cruising the Coast of Vietnam.  All very different but each trip with a charm of its own - just click on the titles for details.

Margot Krasojević regularly produces thought-provoking architectural concepts, with recent examples including a house that screws itself into the ground during high winds and a floating revolving bridge.

Ahead of the premiere of a new documentary on the life and work of Sir Paul Callaghan, a few of his friends and colleagues – including Anne Salmond, Bill Manhire, Nicola Gaston and Shaun Hendy – share their memories of the great man on The Spinoff today.