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Testing explosive bubbles with time-varying volatility (2018)
Journal Article
Harvey, D. I., Leybourne, S. J., & Zu, Y. (2019). Testing explosive bubbles with time-varying volatility. Econometric Reviews, 38(10), 1131-1151. https://doi.org/10.1080/07474938.2018.1536099

This paper considers the problem of testing for an explosive bubble in financial data in the presence of time-varying volatility. We propose a weighted least squares-based variant of the Phillips, Wu and Yu (2011) test for explosive autoregressive be... Read More about Testing explosive bubbles with time-varying volatility.

The role of international and domestic R&D outsourcing for firm innovation (2018)
Journal Article
García-Vega, M., & Huergo, E. (2019). The role of international and domestic R&D outsourcing for firm innovation. Journal of Economic Behavior and Organization, 157, 775-792. https://doi.org/10.1016/j.jebo.2018.11.009

Firms are increasingly outsourcing their high-tech services. Theory suggests that R&D outsourcing allows firms to specialize in core knowledge-intensive tasks, thereby increasing innovation, but R&D outsourcing may also undermine internal capabilitie... Read More about The role of international and domestic R&D outsourcing for firm innovation.

Testing the order of fractional integration of a time series in the possible presence of a trend break at an unknown point (2018)
Journal Article
Iacone, F., Leybourne, S. J., & Taylor, A. R. (2018). Testing the order of fractional integration of a time series in the possible presence of a trend break at an unknown point. Econometric Theory, 35(6), 1201 - 1233. https://doi.org/10.1017/s0266466618000361

We develop a test, based on the Lagrange multiplier [LM] testing principle, for the value of the long memory parameter of a univariate time series that is composed of a fractionally integrated shock around a potentially broken deterministic trend. Ou... Read More about Testing the order of fractional integration of a time series in the possible presence of a trend break at an unknown point.

Broadband infrastructure, ICT use and firm performance: evidence for UK firms (2018)
Journal Article
DeStefano, T., Kneller, R., & Timmis, J. (2018). Broadband infrastructure, ICT use and firm performance: evidence for UK firms. Journal of Economic Behavior and Organization, 155, 110-139. https://doi.org/10.1016/j.jebo.2018.08.020

The recent economics literature has begun to recognise that ICT is a heterogeneous technology altering information storage, processing and communication in distinct ways. In this paper we use the arrival of a new communication technology, ADSL broadb... Read More about Broadband infrastructure, ICT use and firm performance: evidence for UK firms.

On the social inappropriateness of discrimination (2018)
Journal Article
Barr, A., Lane, T., & Nosenzo, D. (2018). On the social inappropriateness of discrimination. Journal of Public Economics, 164, 153-164. https://doi.org/10.1016/j.jpubeco.2018.06.004

We experimentally investigate the relationship between discriminatory behaviour and the perceived social inappropriateness of discrimination. We conjecture that discrimination will be weaker when social norms oppose it. Our results support this predi... Read More about On the social inappropriateness of discrimination.

Immigrant children’s school performance and immigration costs: evidence from Spain (2018)
Journal Article
Albornoz, F., Cabrales, A., Calvo, P., & Hauk, E. (2018). Immigrant children’s school performance and immigration costs: evidence from Spain. Economics Letters, 170, 27-30. https://doi.org/10.1016/j.econlet.2018.05.015

This note provides evidence on how immigration costs affect school performance of immigrant children exploiting the information provided by the CDI; a standardized exam for all students enrolled in the last year of Primary education in the Madrid reg... Read More about Immigrant children’s school performance and immigration costs: evidence from Spain.

Microeconomic adjustments during an export boom: Argentina, 2003-11 (2018)
Journal Article
Albornoz, F., García Lembergman, E., & Juarez, L. (2018). Microeconomic adjustments during an export boom: Argentina, 2003-11. World Economy, 41(8), 2129-2148. https://doi.org/10.1111/twec.12653

This paper examines Argentine exports at the firm level between 2003 and 2011, a period of exceptional and sustained export growth. While at the product level, the pattern of specialisation barely changed, exporters exhibit new dynamics in internatio... Read More about Microeconomic adjustments during an export boom: Argentina, 2003-11.

Psychosocial status and cognitive achievement in Peru (2018)
Journal Article
Outes-Leon, I., Sánchez, A., & Molina, O. (2018). Psychosocial status and cognitive achievement in Peru. Review of Development Economics, 22(4), 1536-1560. https://doi.org/10.1111/rode.12398

This paper assesses the importance of psychosocial status in the accumulation of cognitive skills during the transition from mid to late childhood. We use longitudinal data from a cohort of 700 Peruvian children drawn from a very rich dataset, the Yo... Read More about Psychosocial status and cognitive achievement in Peru.

Semi-autonomous revenue authorities in Sub-Saharan Africa: silver bullet or white elephant (2018)
Journal Article
Dom, R. (2018). Semi-autonomous revenue authorities in Sub-Saharan Africa: silver bullet or white elephant. Journal of Development Studies, 55(7), 1418-1435. https://doi.org/10.1080/00220388.2018.1469743

A major component of tax administration reform in sub-Saharan Africa for the last 30 years has been the creation of semi-autonomous revenue authorities (SARAs). The effects of their creation on revenue performance have been much debated, although the... Read More about Semi-autonomous revenue authorities in Sub-Saharan Africa: silver bullet or white elephant.

Credit Rating and Debt Crises (2018)
Journal Article
Holden, S., Natvik, G. J., & Vigier, A. (2018). Credit Rating and Debt Crises. International Economic Review, 59(2), 973-987. https://doi.org/10.1111/iere.12293

We develop an equilibrium theory of credit rating in the presence of rollover risk. By influencing rational creditors, ratings affect sovereigns' probability of default, which in turn affects ratings. Our analysis reveals a pro-cyclical impact of cre... Read More about Credit Rating and Debt Crises.