The use of libraries by economists,

A draft paper for the International Economic Association 1975 conference on The organization and retrieval of economic knowledg

Testing for rational speculative bubbles in the Brazilian residential real-estate market

Speculative bubbles have been occurring periodically in local or global real estate markets and are considered a potential cause of economic crises. In this context, the detection of explosive behaviors in the financial market and the implementation of early warning diagnosis tests are of critical importance. The recent increase in Brazilian housing prices has risen concerns that the Brazilian economy may have a speculative housing bubble. In the present paper, we employ a recently proposed recursive unit root test in order to identify possible speculative bubbles in data from the Brazilian residential real-estate market. The empirical results show evidence for speculative price bubbles both in Rio de Janeiro and Sao Paulo, the two main Brazilian cities

Effects of the current financial and economic crisis on the rural landscape as well as the agri-food sector in Europe and Central Asia

This paper reviews the expected effects of the current financial crisis and subsequent recession on the rural landscape, in particular the agri-food sector in Europe and Central Asia (ECA) on the basis of the structure of the rural economy and of different organisations and institutions. Empirical evidence suggests that the crisis has hit the ECA region the hardest. Agriculture contributes about 9% to gross domestic product (GDP) for the ECA region as a whole with 16% of the population being employed in the agricultural sector. As far as the impact of the financial crisis on the agri-food sector is concerned, there are a few interconnected issues: (1) reduction in income elastic food demand and commodity price decline, (2) loss of employment and earnings of rural people working in urban centres, implying also costly labour reallocation, (3) rising rural poverty originating mainly from lack of opportunities in the non-farm sector and a sizable decline of international remittances, (4) tightening of agricultural credit markets, and the (5) collapse of sectoral government support programs and social safety-net measures in many countries. The paper reveals how the crisis hit farming and broader agri-business differently in general and in the ECA sub-regions

The shift from sterling to the dollar 1965-76: evidence from Australia and New Zealand

The management of foreign exchange reserves has recently attracted attention from both policy-makers and historians. Historical research has focussed on the nineteenth century and the interwar period, with less attention to the strategies of smaller countries in the final transition from sterling to the dollar in the post-1945 period. This article examines the evolution of reserve currency policy from the perspective of Australia and New Zealand in the 1960s and early 1970s. As in the 1930s, economic uncertainty and a shift in global economic power prompted changes in reserves strategy. Patterns of trade and debt and falling confidence in British economic policy prompted a move away from sterling, but the timing and extent of this transition were affected by the fragility of the sterling exchange rate, lack of alternative assets, and continued dependence on the London capital market. The choices for Australia and New Zealand were thus constrained, but they were able to leverage their position as holders of sterling to engage in agreements that provided an exchange rate guarantee for their sterling holdings and continued access to the London capital market. This mitigated the effect of the final global transition from sterling to the dollar while protecting their interests

A Stable and Robust Calibration Scheme of the Log-Periodic Power Law Model

We present a simple transformation of the formulation of the log-periodic power law formula of the Johansen-Ledoit-Sornette model of financial bubbles that reduces it to a function of only three nonlinear parameters. The transformation significantly decreases the complexity of the fitting procedure and improves its stability tremendously because the modified cost function is now characterized by good smooth properties with in general a single minimum in the case where the model is appropriate to the empirical data. We complement the approach with an additional subordination procedure that slaves two of the nonlinear parameters to what can be considered to be the most crucial nonlinear parameter, the critical time $t_c$ defined as the end of the bubble and the most probably time for a crash to occur. This further decreases the complexity of the search and provides an intuitive representation of the results of the calibration. With our proposed methodology, metaheuristic searches are not longer necessary and one can resort solely to rigorous controlled local search algorithms, leading to dramatic increase in efficiency. Empirical tests on the Shanghai Composite index (SSE) from January 2007 to March 2008 illustrate our findings

Credit expansion and the economy

Credit expansion has been associated with faster economic growth and with a higher occurrence of financial crises – a pair of results which seem to contradict each other. This paper advances an explanation for these results by separating credit to the private sector into credit to firms and credit to households. The empirical analysis shows that credit to firms is responsible for the positive growth effect, while the higher occurrence of crises is mainly due to credit to households. The events of the last decade, where fast credit expansion led to crises and very little growth, can be understood as a shift in the composition of credit towards its household component