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While central banks cannot provide complete foresight with respect to their future policy actions, it is in the interests of both central banks and market participants that central banks be transparent about their reaction functions and how they may evolve in response to economic developments, shocks, and risks to their outlooks.

For central banks, conducting policy in an environment of uncertainty is a daily fact of life. This uncertainty can take many forms, ranging from incomplete knowledge of the correct economic model and data to future economic and geopolitical events whose precise magnitudes and effects cannot be known with certainty.

How do unconventional monetary policies like quantitative easing and negative interest rates affect domestic financial conditions and the broader economy in small open econo-mies, such as Canada? These policies are effective in depreciating the exchange rate in small open economies, while lower interest rates are also passed through to the economy, albeit only partially. When conventional monetary policy is close to its limits, fiscal policy may be a more important complement to monetary policy in a small economy, particularly if global demand for safe assets compresses long-term interest rates.

Growth has slowed in many emerging-market economies (EMEs) since the 2007–09 global financial crisis, reflecting both cyclical and structural factors. In this context, it will be in-creasingly important for EMEs to raise potential growth by maintaining steady progress on structural reforms. How do structural reforms generally support growth? What are the re-form priorities for EMEs over recent history and today? Finally, what will be the impact of planned structural reforms on potential output growth among the world’s larger EMEs? These are some of the questions considered by the authors.

Central banks contribute importantly to the promotion of financial stability given their sys-tem-wide macro-financial perspective and existing roles as lender of last resort and overseer of systemic payment systems. Since the global financial crisis, the financial system role of central banks has expanded to place more emphasis on the prevention of financial stress and crises. Central banks work with other responsible authorities to enhance financial system resilience and to assess and mitigate financial vulnerabilities and systemic risk.

Central banks can implement unconventional monetary policy measures to provide additional easing when policy interest rates come close to their lower limit. To date, the international experience with tools such as quantitative easing and negative interest rates has been largely positive. Central banks may also use several such measures simultaneously, with often mutually reinforcing effects. Yet, unconventional tools are also subject to potential limits, and the costs associated with these measures could rise with extensive and prolonged use.

Since 2009, the G-20 Framework for Strong, Sustainable and Balanced Growth has provided a mechanism for international macroeconomic policy coordination. The Framework has had some successes, including agreement on objectives for fiscal consolidation. However, post-crisis global growth has been neither strong nor balanced. Progress has also been slow in developing credible fiscal consolidation plans in some advanced countries and in increasing exchange rate flexibility in certain emerging economies. A stronger peer review process and enhanced analysis of international spillovers would increase the Framework’s influence on member policies.