Similar Search Results

Tweets, Google Trends and Sovereign Spreads in the GIIPS

Dergiades, Theologos; Milas, Costas; Panagiotidis, Theodore - London School of Economics (LSE) - 2013

We examine whether the information contained in social media (Twitter & Facebook) and web search queries (Google) influences financial markets. Using a multivariate system and focussing on Eurozone’s peripheral countries, the GIIPS (Greece, Ireland, Italy, Portugal and Spain), we show that...

Persistent link: https://www.econbiz.de/10010735151

Goodness-of-fit: an economic approach

Cowell, Frank; Flachaire, Emmanuel; Bandyopadhyay, … - London School of Economics (LSE) - 2009

Specific functional forms are often used in economic models of distributions; goodness-of-fit measures are used to assess whether a functional form is appropriate in the light of real-world data. Standard approaches use a distance criterion based on the EDF, an aggregation of differences in...

Persistent link: https://www.econbiz.de/10010745302

Tweets, Google trends and sovereign spreads in the GIIPS

Dergiades, Theologos; Milas, Costas; Panagiotidis, Theodore - London School of Economics (LSE) - 2013

Persistent link: https://www.econbiz.de/10010745713

Benford's Law, families of distributions and a test basis

Morrow, John - London School of Economics (LSE) - 2014

Benford's Law is used to test for data irregularities. While novel, there are two weaknesses in the current methodology. First, test values used in practice are too conservative and the test values of this paper are more powerful and hold for fairly small samples. Second, testing requires...

Persistent link: https://www.econbiz.de/10011126547

Semiparametric regression analysis under imputation for missing response data

Hardle, Wolfgang; Linton, Oliver; Wang, Qihua - London School of Economics (LSE) - 2003

We develop inference tools in a semiparametric regression model with missing response data. A semiparametric regression imputation estimator, a marginal average estimator and a (marginal) propensity score weighted estimator are defined. All the estimators are proved to be asymptotically normal,...

Persistent link: https://www.econbiz.de/10010928736

Evolving patterns of international trade

Proudman, James; Redding, Stephen - London School of Economics (LSE) - 2000

Theoretical models of growth and trade suggest that patterns of international specialization are dynamic and evolve endogenously over time. Initial comparative advantages are either reinforced or gradually unwound with the passage of time. This paper puts forward an empirical framework for...

Persistent link: https://www.econbiz.de/10010884664

Convergence of firm-level productivity, globalisation, information technology and competition: evidence from France

Chevalier, Paul-Antoine; Lecat, Rémy; Oulton, Nicholas - London School of Economics (LSE) - 2009

stylised facts are considered: globalisation, information technology, and competition. Globalisation and information technology … may have benefited the most productive firms more and the growth of competition may at the same time have stimulated the …

Persistent link: https://www.econbiz.de/10010744856

Productivity convergence and foreign ownership at the establishment level

Griffith, Rachel; Redding, Stephen; Simpson, Helen - London School of Economics (LSE) - 2003

This paper investigates whether there is convergence in Total Factor Productivity towards the technological frontier at the establishment level. We find convergence to the frontier is statistically and quantitatively important, suggesting the existence of technology spillovers. Foreign...

Persistent link: https://www.econbiz.de/10010744968

The impact of competition on management quality: evidence from public hospitals

Bloom, Nick; Propper, Carol; Seiler, Stephan; Van … - London School of Economics (LSE) - 2010

In this paper we examine the causal impact of competition on management quality. We analyze the hospital sector where … geographic proximity is a key determinant of competition, and English public hospitals where political competition can be used to … survival rates from emergency heart attack admissions (AMI). More importantly, we find that higher competition (as indicated by …

Persistent link: https://www.econbiz.de/10010745172

The effect of credit rationing on the shape of the competition-innovation relationship

Bena, Jan - London School of Economics (LSE) - 2009

incentive effect of competition on innovation and the effect competition has on the degree of credit rationing. I find that the … levels of competition. These predictions are supported by empirical evidence: The competition-innovation relationship has an … developed financial systems. Innovation-enhancing policies implemented through competition reforms ought to be complemented by …

Persistent link: https://www.econbiz.de/10010745834