Setting Up a Business in the Netherlands

Why does one person actually succeed in starting a business, while a second gives up, and a third is still trying? To answer this question, a longitudinal study was set up in which 330 nascent entrepreneurs (people setting up a business) were followed over a one-year period. After one year, 47% actually started a business, 27% was still organizing, and 26% gave up the effort. In comparison to the two other groups, starters are different in terms of gender, industry experience, start-up capital, use of third party loans, sector and current activity.survival;performance;nascent entrepreneurs;start-ups

L4Fe2As2Te1-xO4-yFy (L = Pr, Sm, Gd): a layered oxypnictide superconductor with Tc up to 45 K

The synthesis, structural and physical properties of iron lanthanide oxypnictide superconductors, L4Fe2As2Te1-xO4 (L = Pr, Sm, Gd), with transition temperature at ~ 25 K are reported. Single crystals have been grown at high pressure using cubic anvil technique. The crystal structure consists of layers of L2O2 tetrahedra separated by alternating layers of chains of Te and of Fe2As2 tetrahedra: -L2O2-Te-L2O2-Fe2As2-L2O2-Te-L2O2- (space group: I4/mmm, a ~ 4.0, c ~ 29.6 {\AA}). Substitution of oxygen by fluorine increases the critical temperature, e.g. in Gd4Fe2As2Te1-xOyF4-y up to 45 K. Magnetic torque measurements reveal an anisotropy of the penetration depths of ~31.Comment: 8 figures, 4 table

Setting Up a Business in the Netherlands

Why does one person actually succeed in starting a business, while a second gives up, and a third is still trying? To answer this question, a longitudinal study was set up in which 330 nascent entrepreneurs (people setting up a business) were followed over a one-year period. After one year, 47% actually started a business, 27% was still organizing, and 26% gave up the effort. In comparison to the two other groups, starters are different in terms of gender, industry experience, start-up capital, use of third party loans, sector and current activity

Success and risk factors in the pre-startup phase

Why does one person actually succeed in starting a business, while a second person gives up? In order to answer this question, a sample of 517 nascent entrepreneurs (people in the process of setting up a business) was followed over a three year period. After this period, it was established that 195 efforts were successful and that 115 startup efforts were abandoned. Our research focuses on estimating the relative importance of a variety of approaches and variables in explaining pre-startup success. These influences are organized in terms of Gartner's (1985) framework of new venture creation. This framework suggests that start-up efforts differ in terms of the characteristics of the individual(s) who start the venture, the organization which they create, the environment surrounding the new venture, and the process by which the new venture is started. Logistic regression analyses are run for the sample as a whole as well as for subgroups within the sample, namely for those with high ambition vs. low ambition and for those with substantial vs. limited experience. The results point to the importance of perceived risk of the market as a predictor of getting started vs. abandoning the startup effort

Mass Models for Spiral Galaxies from 2-D Velocity Maps

We model the mass distributions of 40 high surface brightness spiral galaxies inside their optical radii, deriving parameters of mass models by matching the predicted velocities to observed velocity maps. We use constant mass-to-light disk and bulge models, and we have tried fits with no halo and with three different halo density profiles. The data require a halo in most, but not all, cases, while in others the best fit occurs with negligible mass in the luminous component, which we regard as unphysical. All three adopted halo profiles lead to fits of about the same quality, and our data therefore do not constrain the functional form of the halo profile. The halo parameters display large degeneracies for two of the three adopted halo functions, but the separate luminous and dark masses are better constrained. However, the fitted disk and halo masses vary substantially between the adopted halo models, indicating that even high quality 2-D optical velocity maps do not provide significant constraints on the dark matter content of a galaxy. We demonstrate that data from longslit observations are likely to provide still weaker constraints. We conclude that additional information is needed in order to constrain the separate disk and halo masses in a galaxy.Comment: 41 pages, 13 figures, accepted for publication in A

Modelling Entrepreneurship

Two approaches can be distinguished with respect to modelling entrepreneurship: (i) the approach focusing on the net development of the number of entrepreneurs in an equilibrium framework and (ii) the approach focusing on the entries and exits of entrepreneurs. In this paper we unify these ap- proaches to arrive at a model explaining the equilibrium and actual number of entrepreneurs and the entry and exit rate of entrepreneurs simultaneously and consistently. We apply our unified approach to the Netherlands using self-employment data for the 1960-99 period. We find error-correction of about 20% per year and a very different situation in terms of disequilibrium before and after the early 1980's. Periods of high unemployment appear to be characterized by both high entry and high exit rates

SMEs in Europe 2003

Entrepreneurship and SMEs have emerged as the engine of economic and social development throughout the world. The role of entrepreneurship has changed dramatically and fundamentally, so that it is now seen as a requisite ingredient generating employment, economic growth and international competitiveness in the global economy. The purpose of this report is first to explain why the role of SMEs is crucial for international competitiveness and a strong economic performance in Europe, and then to document the role that SMEs play in Europe. Entrepreneurship and SMEs are related but certainly not identical concepts. Entrepreneurs, for example, are the main drivers of the firm creation process where young and small firms play a role. On the other hand, the entrepreneurial energy of a country, region or industry is often described using phenomena such as firm creation and turbulence (Carree and Thurik, 2003). The impact that SMEs have on economic performance in Europe is explained in Chapter 2. A careful measurement of the structure and role of SMEs is required to understand the different roles that SMEs play and how these roles are evolving throughout Europe. In particular, a measurement of SME activity in Europe provides (in Section 3.1) what the (static) role of SMEs is in Europe, how the role of SMEs varies across specific countries and how it is benchmarked against the other major areas in the world. How the economic role of SMEs has been changing over time is presented in Section 3.2. The way in which the measurement of the structure and role of SMEs is set up hinges on two views: first it attempts to illustrate the theory-based results surveyed in Chapter 2. Second, it is in line with the measurements given in earlier versions of the SME Observatory reports 'SMEs in Europe'. A report about SMEs in Europe would however not be complete if no attention is paid to the current economic setting. The European economy is recovering from an economic downturn. Very little information is available about the roles of SMEs in the business cycle and in particular how do SMEs respond to economic adversity. This issue is dealt with in Chapter 4. Finally a Synthesis is presented in Chapter 5

The stellar dynamics and mass of NGC 1316 using the radial velocities of planetary nebulae

We present a study of the kinematics of the outer regions of the early-type galaxy NGC 1316, based on radial velocity measurements of 43 planetary nebulae as well as deep integrated-light absorption line spectra. The smoothed velocity field of NGC 1316 indicates fast rotation at a distance of 16 kpc, possibly associated with an elongated feature orthogonal to the inner dust lanes. The mean square stellar velocity is approximately independent of radius, and the estimated total mass of the system is 2.6 x 10^11 M_sun within a radius of 16 kpc, implying an integrated mass-to-light ratio of M/L_B = 8.Comment: 39 pages, 14 figures, in press on The Astrophysical Journal n. 50

The Value of Human and Social Capital Investments for the Business Performance of Start-ups

We investigate the manifold posed question: "To what extent does investment in human and social capital, besides the effect of "talent", enhance entrepreneurial performance?". We distinguish between three different performance measures: survival, profits, and generated employment. On the basis of the empirical analysis of a rich Dutch longitudinal data set of firm founders, we conclude that specific investments indeed affect the three performance measures sub- stantially and significantly. Specific attention is paid to the unobserved talent bias. Moreover, the effect of the emergence of so called "knowledge industries" is explored

New Observations of Extra-Disk Molecular Gas in Interacting Galaxy Systems, Including a Two-Component System in Stephan's Quintet

We present new CO (1 - 0) observations of eleven extragalactic tails and bridges in nine interacting galaxy systems, almost doubling the number of such features with sensitive CO measurements. Eight of these eleven features were undetected in CO to very low CO/HI limits, with the most extreme case being the NGC 7714/5 bridge. This bridge contains luminous H II regions and has a very high HI column density (1.6 X 10^21 cm^-2 in the 55" CO beam), yet was undetected in CO to rms T(R)* = 2.4 mK. The HI column density is higher than standard H2 and CO self-shielding limits for solar-metallicity gas, suggesting that the gas in this bridge is metal-poor and has an enhanced N(H2)/I(CO) ratio compared to the Galactic value. Only one of the eleven features in our sample was unambiguously detected in CO, a luminous HI-rich star formation region near an optical tail in the compact group Stephan's Quintet. We detect CO at two widely separated velocities in this feature, at ~6000 km/s and ~6700 km/s. Both of these components have HI and H-alpha counterparts. These velocities correspond to those of galaxies in the group, suggesting that this gas is material that has been removed from two galaxies in the group. The CO/HI/H-alpha ratios for both components are similar to global values for spiral galaxies.Comment: 39 pages, Latex, 15 figures, Astronomical Journal, in pres