måndag 11 augusti 2008

Vad är en recession (enligt NBER)

Ofta hör man lekmannadefinitioner avseende recession i stil med två kvartal i rad med negativ real BNP-tillväxt. Det är emellertid INTE den officiella definitionen.

Enligt NBER är en recession...

...a significant decline in economic activity spread across the economy, lasting more than a few months, normally visible in real GDP, real income, employment, industrial production, and wholesale-retail sales. A recession begins just after the economy reaches a peak of activity and ends as the economy reaches its trough. Between trough and peak, the economy is in an expansion. Expansion is the normal state of the economy; most recessions are brief and they have been rare in recent decades.


För att förtydliga svarar NBER direkt på frågan om tvåkvartalsdefinitionen:

Question: The financial press often states the definition of a recession as two consecutive quarters of decline in real GDP. How does that relate to the NBER's recession dating procedure?

Answer: Most of the recessions identified by our procedures do consist of two or more quarters of declining real GDP, but not all of them. According to current data for 2001, the present recession falls into the general pattern, with three consecutive quarters of decline. Our procedure differs from the two-quarter rule in a number of ways. First, we consider the depth as well as the duration of the decline in economic activity. Recall that our definition includes the phrase, "a significant decline in economic activity." Second, we use a broader array of indicators than just real GDP. One reason for this is that the GDP data are subject to considerable revision. Third, we use monthly indicators to arrive at a monthly chronology.

3 kommentarer:

Prof. Dr. Hans Byström sa...

hej!
ett litet tillägg bara. GLOBAL recession definieras av IMF som en genomsnittlig global tillväxttakt under sisådär 3%. dvs tillväxten behöver ej vara negativ globalt sett för att IMF ska prata om recession! kan vara bra att veta när man läser negativa news flash (eller min blog...) som talar om hög risk för global recession!

/Hans

Sprezzaturian sa...

Mycket bra kommentar. Tack.

Under 3% globalt skulle kosta (eller smaka, om du frågar mig)

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